build(deps): bump actions/cache from 3 to 4 (#119)

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

Author: dependabot[bot]

.github/workflows/tf-lint.yml

@@ -16,7 +16,7 @@ jobs:
       - uses: actions/checkout@v4
         name: Checkout source code
 
-      - uses: actions/cache@v3
+      - uses: actions/cache@v4
         name: Cache plugin dir
         with:
           path: ~/.tflint.d/plugins