Merge pull request #922 from pidcodes/dependabot/github_actions/actions/cache-4

Bump actions/cache from 2 to 4

Author: tannewt

.github/workflows/htmlproofer.yml

@@ -11,7 +11,7 @@ jobs:
       - uses: ruby/setup-ruby@v1
         with:
           ruby-version: '2.6'
-      - uses: actions/cache@v2
+      - uses: actions/cache@v4
         with:
           path: vendor/bundle
           key: ${{ runner.os }}-gems-${{ hashFiles('**/Gemfile') }}