build(deps): bump actions/cache from 3 to 4 (#1088)

Bumps [actions/cache](https://github.com/actions/cache) from 3 to 4.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v3...v4)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/ci-tests.yml

@@ -57,7 +57,7 @@ jobs:
       id: pip-cache
       run: echo "dir=$(pip cache dir)" >> $GITHUB_OUTPUT
     - name: Restore pip cache
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       id: restore-cache
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
@@ -86,14 +86,14 @@ jobs:
 
     - name: Save pip cache
       if: github.ref == 'refs/heads/master'
-      uses: actions/cache/save@v3
+      uses: actions/cache/save@v4
       with:
         path: ${{ steps.pip-cache.outputs.dir }}
         key: pip-dependencies
 
     - name: Cache datasets
       id: cache-datasets
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: ./_datasets
         enableCrossOsArchive: true
@@ -129,7 +129,7 @@ jobs:
       run: python -m atari_py.import_roms ROMS
 
     - name: Restore HF cache
-      uses: actions/cache/restore@v3
+      uses: actions/cache/restore@v4
       with:
         path: ${{ env.TRANSFORMERS_CACHE }}
         key: cache-transformers
@@ -139,7 +139,7 @@ jobs:
 
     - name: Save HF cache
       if: github.ref == 'refs/heads/master'
-      uses: actions/cache/save@v3
+      uses: actions/cache/save@v4
       with:
         path: ${{ env.TRANSFORMERS_CACHE }}
         key: cache-transformers

.github/workflows/docs-check.yml

@@ -30,7 +30,7 @@ jobs:
           python-version: 3.9
 
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: pip-${{ hashFiles('requirements/*.txt') }}
@@ -60,7 +60,7 @@ jobs:
           python-version: 3.9
 
       - name: Cache pip
-        uses: actions/cache@v3
+        uses: actions/cache@v4
         with:
           path: ~/.cache/pip
           key: pip-${{ hashFiles('requirements/*.txt') }}