squash: disable cache for now

Author: arielvalentin

.github/actions/test_gem/action.yml

@@ -89,7 +89,7 @@ runs:
         ruby-version: "${{ inputs.ruby }}"
         working-directory: "${{ steps.setup.outputs.gem_dir }}"
         bundler:  "latest"
-        bundler-cache: true
+        bundler-cache: false
         cache-version: "${{ inputs.ruby }}-${{ steps.setup.outputs.cache_key }}"
 
     # If we're using appraisals, do it all manually.