ci: add workflows for legacy v5 branch

.github/actions/build-v5/action.yml

@@ -0,0 +1,24 @@
+name: 'Build (legacy v5)'
+description: 'Build the project'
+
+runs:
+  using: composite
+  steps:
+    - uses: myparcelnl/actions/yarn-install@v4
+      with:
+        node-version: 18
+
+    - name: 'Cache build'
+      uses: actions/cache@v4
+      id: cache-build
+      with:
+        path: |
+          ./dist
+        key: ${{ runner.os }}-build-${{ hashFiles('**/yarn.lock') }}-${{ hashFiles('**/src') }}
+
+    - name: 'Create build'
+      if: steps.cache-build.outputs.cache-hit != 'true'
+      run: yarn build
+      shell: bash
+      env:
+        NODE_OPTIONS: --openssl-legacy-provider

.github/actions/test-v5/action.yml

@@ -0,0 +1,36 @@
+name: 'Run tests'
+description: 'Run tests and upload coverage'
+
+inputs:
+  codecov-token:
+    description: 'Codecov token'
+    required: true
+
+runs:
+  using: composite
+  steps:
+    - name: 'Cache coverage'
+      uses: actions/cache@v4
+      id: cache-coverage
+      with:
+        path: ./coverage
+        key: ${{ runner.os }}-coverage-${{ hashFiles('**/yarn.lock') }}-${{ hashFiles('**/src') }}
+        restore-keys: |
+          ${{ runner.os }}-coverage-${{ hashFiles('**/yarn.lock') }}
+          ${{ runner.os }}-coverage-
+
+    - uses: myparcelnl/actions/yarn-install@v4
+      if: steps.cache-coverage.outputs.cache-hit != 'true'
+      with:
+        node-version: 18
+
+    - name: 'Run tests'
+      if: steps.cache-coverage.outputs.cache-hit != 'true'
+      run: ./node_modules/.bin/cross-env yarn test:unit --coverage
+      shell: bash
+      env:
+        NODE_ICU_DATA: node_modules/full-icu
+
+    - uses: codecov/codecov-action@v4
+      with:
+        token: ${{ inputs.codecov-token }}

.github/workflows/push-v5.yml

@@ -0,0 +1,63 @@
+name: 'On push (legacy v5) ⚙️'
+
+on:
+  push:
+    branches:
+      - v5.x
+
+    paths-ignore:
+      - ./**/*.md
+      - ./.idea/**
+
+concurrency:
+  group: '${{ github.workflow }}-${{ github.ref }}'
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: ./.github/actions/test-v5
+        with:
+          codecov-token: ${{ secrets.CODECOV_TOKEN }}
+
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: ./.github/actions/build-v5
+
+  release:
+    runs-on: ubuntu-22.04
+    needs:
+      - test
+      - build
+    steps:
+      - uses: myparcelnl/actions/setup-git-credentials@v4
+        id: credentials
+        with:
+          app-id: ${{ secrets.MYPARCEL_APP_ID }}
+          private-key: ${{ secrets.MYPARCEL_APP_PRIVATE_KEY }}
+
+      - uses: actions/checkout@v4
+        with:
+          token: ${{ steps.credentials.outputs.token }}
+          fetch-depth: 0
+
+      - uses: ./.github/actions/build-v5
+
+      - uses: myparcelnl/actions/semantic-release@v4
+        env:
+          NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
+        with:
+          token: ${{ steps.credentials.outputs.token }}
+
+  rebase-prs:
+    needs:
+      - test
+      - build
+    uses: ./.github/workflows/rebase-prs.yml
+    secrets: inherit

.github/workflows/run-tests-v5.yml

@@ -0,0 +1,29 @@
+name: 'Run tests (legacy v5) 🧪'
+
+on:
+  pull_request:
+    branches:
+      - v5.x
+
+  merge_group:
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  test:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: ./.github/actions/test-v5
+        with:
+          codecov-token: ${{ secrets.CODECOV_TOKEN }}
+
+  build:
+    runs-on: ubuntu-22.04
+    steps:
+      - uses: actions/checkout@v4
+
+      - uses: ./.github/actions/build-v5