Add obsoletes to fix errors in shim-unsigned upgrade to shim

[christopherco]

Merge Checklist

All boxes should be checked before merging the PR (just tick any boxes which don't apply to this PR)

• The toolchain has been rebuilt successfully (or no changes were made to it)
• The toolchain/worker package manifests are up-to-date
• Any updated packages successfully build (or no packages were changed)
• Packages depending on static components modified in this PR (Golang, *-static subpackages, etc.) have had their Release tag incremented.
• Package tests (%check section) have been verified with RUN_CHECK=y for existing SPEC files, or added to new SPEC files
• All package sources are available
• cgmanifest files are up-to-date and sorted (./cgmanifest.json, ./toolkit/scripts/toolchain/cgmanifest.json, .github/workflows/cgmanifest.json)
• LICENSE-MAP files are up-to-date (./LICENSES-AND-NOTICES/SPECS/data/licenses.json, ./LICENSES-AND-NOTICES/SPECS/LICENSES-MAP.md, ./LICENSES-AND-NOTICES/SPECS/LICENSE-EXCEPTIONS.PHOTON)
• All source files have up-to-date hashes in the *.signatures.json files
• sudo make go-tidy-all and sudo make go-test-coverage pass
• Documentation has been updated to match any changes to the build system
• Ready to merge

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Summary

Prior ARM64 images and installations historically used "shim-unsigned" v15.4 in order to boot without Secure Boot enforcing.
To ensure a seamless upgrade experience from the older unsigned shim to this new signed shim, include additional RPM dependency logic (Obsoletes on "shim-unsigned" so older installations with "shim-unsigned" installed will upgrade cleanly from the unsigned shim v15.4 to this new signed version of the shim v15.8+

Signed-off-by: Chris Co [email protected]

Does this affect the toolchain?

NO

Associated issues

• https://microsoft.visualstudio.com/OS/_workitems/edit/55261776

Test Methodology

• Pipeline build id:
  • x64 - 684829
  • arm64 - 684830