Bump actions/cache from 3.3.1 to 3.3.2

Closes #159

GitOrigin-RevId: d37b242
Change-Id: I1cb6df782b90edc383d22f64de2c8cb1e57a01e0
Reviewed-on: https://dart-review.googlesource.com/c/homebrew-dart/+/329060
Commit-Queue: Jonas Termansen <sortie@google.com>
Reviewed-by: Jonas Termansen <sortie@google.com>

.github/workflows/tests.yml

@@ -23,7 +23,7 @@ jobs:
 
       - name: Cache Homebrew Bundler RubyGems
         id: cache
-        uses: actions/cache@88522ab9f39a2ea568f7027eddc7d8d8bc9d59c8
+        uses: actions/cache@704facf57e6136b1bc63b828d79edcd491f0ee84
         with:
           path: ${{ steps.set-up-homebrew.outputs.gems-path }}
           key: ${{ runner.os }}-rubygems-${{ steps.set-up-homebrew.outputs.gems-hash }}