chore(deps): update swatinem/rust-cache action to v2.7.7

Author: renovate[bot]

.github/workflows/rust.yml

@@ -30,7 +30,7 @@ jobs:
           components: clippy
 
       - name: cache dependencies
-        uses: Swatinem/rust-cache@v2.7.5
+        uses: Swatinem/rust-cache@v2.7.7
 
       - name: reviewdog / clippy
         uses: sksat/action-clippy@v1.1.1