explicitly add libgcc as a Requires to distroless base

[mandeepsplaha]

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 (./SPECS/LICENSES-AND-NOTICES/data/licenses.json, ./SPECS/LICENSES-AND-NOTICES/LICENSES-MAP.md, ./SPECS/LICENSES-AND-NOTICES/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

What does the PR accomplish, why was it needed?
This PR adds libgcc package explictly as a runtime dependency for distroless/base subpackage to ensure that the distroless/base container image continues to have it. Currently, libgcc is brought it by some other package as its dependency. It was observed that the changes in Azure Linux 3.0 had resulted in the removal of libgcc package from distroless base, so it was explictly added to not cause a breaking change. For reference, this is the merged PR in Azure Linux 3.0: #8520.

Change Log

Package: distroless-packages-base

Does this affect the toolchain?

NO

Test Methodology

This is considered a non-breaking change as we are just explicitly including libgcc as a runtime dependency; it is already present due to some other package.

Azure Linux 2.0 distroless/debug
busybox
distroless-packages-base
distroless-packages-debug
distroless-packages-minimal
filesystem
glibc
glibc-iconv
iana-etc
libgcc
mariner-release
openssl
openssl-libs
prebuilt-ca-certificates
tzdata