[llvm] workflows/release-binaries: Stop using ccache (PR #124415)

[Carlo Cabrera via llvm-commits]

carlocab wrote:

There's some documentation here: https://docs.github.com/en/actions/writing-workflows/choosing-what-your-workflow-does/caching-dependencies-to-speed-up-workflows#restrictions-for-accessing-a-cache

Also mentioned here, but with caveats: https://adnanthekhan.com/2024/05/06/the-monsters-in-your-build-cache-github-actions-cache-poisoning/

https://github.com/llvm/llvm-project/pull/124415