Create Trident RPM for 0.21.0 and update ImageCustomizer RPM for 1.2.0

[bfjelds]

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

Create Trident RPM for Trident v0.21.0
Update ImageCustomizer RPM for v1.2.0

Change Log

• Create SPECS/trident spec, signatures, etc
• Update SPECS/azurelinux-image-tools spec, signatures, etc

Does this affect the toolchain?

NO

Associated issues

Links to CVEs

Test Methodology

• buddy build

[frhuelsz]

I think we could be missing some Requires: here?

[cwize1]

I think Trident always calls osmodifier under chroot? Does osmodifier get installed into the chroot environment? Or is it separate?

[bfjelds]

it sounds like sometimes in chroot with some kind of magic to make it accessible, sometimes not in chroot (maybe mos).

[bfjelds]

i think this should be worked out and the correct Requires should be added at some point. @Britel has talked about fixing things if needed in a quick version update, this might be that sort of thing.