No reuse of homebrew cache with old versions (#454)

Avoid reusing homebrew cache with old major versions. The cleanup would
require explicit uninstall which isn't easily doable. And without
cleanup the cache ends up contain both old and new versions and
increases in size indefinitely on every major version update. Avoid this
problem by creating fresh cache whenever any tool changes.

Author: nikobockerman

.github/actions/homebrew-packages-setup/init.sh

@@ -65,7 +65,6 @@ echo "::group::Outputs from init"
   echo "cache-key-for-restore=${cacheKeyForRestore}"
   echo "cache-restore-keys<<ENDKEYS"
   echo "${cacheKeyPrefix}-"
-  echo "${cacheKeyBase}-"
   echo "ENDKEYS"
 
   # Tools to install