main/alpine-base: unprotect os-release

this is useful to not create .apk-new's for something that should never be edited anyway and always overwritten, but that might be edited by accident, preventing replacement of a newer release version.

assigned to @ncopa

added 332 commits

• c0250814...a205e87f - 331 commits from branch alpine:master
• 2e848483 - main/alpine-base: unprotect os-release

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added 22 commits

• 2e848483...8f6b30e3 - 21 commits from branch alpine:master
• d9bce0e6 - main/alpine-base: unprotect os-release

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merged