chore: enter pre-release state for v9

[oliverschuerch]

To check generate the below file again:

1. Checkout this branch
2. Open shell and enter pnpm changeset status --output=changesets.json
3. Open changesets.json

See current dist-tags on a package:

1. Open shell and enter pnpm view <package-name> dist-tags

Current content of changesets.json:
28.08.2024 - 17:00

{
  "changesets": [
    {
      "releases": [
        {
          "name": "@swisspost/design-system-styles",
          "type": "major"
        }
      ],
      "summary": "Removed deprecated `display-size` variables.",
      "id": "cold-panthers-vanish"
    },
    {
      "releases": [
        {
          "name": "@swisspost/design-system-documentation",
          "type": "major"
        }
      ],
      "summary": "Removed the Monospace font from the typography page of the documentation (will not be available once Bootstrap isn't included anymore).",
      "id": "gorgeous-flowers-flow"
    }
  ],
  "releases": [
    {
      "name": "@swisspost/design-system-styles",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [
        "cold-panthers-vanish"
      ],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-documentation",
      "type": "major",
      "oldVersion": "5.4.0",
      "changesets": [
        "gorgeous-flowers-flow"
      ],
      "newVersion": "6.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-components",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-components-angular-workspace",
      "type": "patch",
      "oldVersion": "1.1.9",
      "changesets": [],
      "newVersion": "1.1.10-next.0"
    },
    {
      "name": "@swisspost/design-system-demo",
      "type": "patch",
      "oldVersion": "8.0.2",
      "changesets": [],
      "newVersion": "8.0.3-next.0"
    },
    {
      "name": "@swisspost/internet-header",
      "type": "patch",
      "oldVersion": "1.14.5",
      "changesets": [],
      "newVersion": "1.14.6-next.0"
    },
    {
      "name": "@swisspost/design-system-intranet-header-workspace",
      "type": "patch",
      "oldVersion": "3.0.21",
      "changesets": [],
      "newVersion": "3.0.22-next.0"
    },
    {
      "name": "@swisspost/design-system-intranet-header",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-nextjs-integration",
      "type": "patch",
      "oldVersion": "0.1.13",
      "changesets": [],
      "newVersion": "0.1.14-next.0"
    },
    {
      "name": "@swisspost/design-system-styles-primeng-workspace",
      "type": "patch",
      "oldVersion": "1.0.5",
      "changesets": [],
      "newVersion": "1.0.6-next.0"
    },
    {
      "name": "@swisspost/design-system-styles-primeng",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-components-angular",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-components-react",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-intranet-header-showcase",
      "type": "patch",
      "oldVersion": "1.0.9",
      "changesets": [],
      "newVersion": "1.0.10-next.0"
    },
    {
      "name": "@swisspost/design-system-tokens",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-icons",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    },
    {
      "name": "@swisspost/design-system-migrations",
      "type": "major",
      "oldVersion": "8.2.0",
      "changesets": [],
      "newVersion": "9.0.0-next.0"
    }
  ],
  "preState": {
    "mode": "pre",
    "tag": "next",
    "initialVersions": {
      "@swisspost/design-system-changelog-github": "1.0.2",
      "@swisspost/design-system-components": "8.0.0",
      "@swisspost/design-system-components-angular-workspace": "1.1.7",
      "@swisspost/design-system-components-angular": "8.0.0",
      "@swisspost/design-system-components-react": "8.0.0",
      "@swisspost/design-system-demo": "8.0.0",
      "@swisspost/design-system-documentation": "5.3.3",
      "@swisspost/design-system-icons": "8.0.0",
      "@swisspost/internet-header": "1.14.3",
      "@swisspost/design-system-intranet-header-workspace": "3.0.19",
      "@swisspost/design-system-intranet-header": "8.0.0",
      "@swisspost/design-system-intranet-header-showcase": "1.0.7",
      "@swisspost/design-system-migrations": "8.0.0",
      "@swisspost/design-system-nextjs-integration": "0.1.11",
      "@swisspost/design-system-styles": "8.0.0",
      "@swisspost/design-system-styles-primeng-workspace": "1.0.3",
      "@swisspost/design-system-styles-primeng": "8.0.0",
      "@swisspost/design-system-tokens": "0.1.0"
    },
    "changesets": [
      "cold-panthers-vanish",
      "gorgeous-flowers-flow"
    ]
  }
}

[changeset-bot]

⚠️ No Changeset found

Latest commit: 395909b

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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[gfellerph]

I think we need the changeset only at the moment when we first merge an actual breaking change to main (could be soon). Merging this one after that would be enough to switch into next mode. In the meantime, we can just go about usual business.

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud