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

Author: renovate[bot]

.github/workflows/test.yml

@@ -40,7 +40,7 @@ jobs:
           override: true
           components: clippy, rustfmt
 
-      - uses: Swatinem/rust-cache@v1
+      - uses: Swatinem/rust-cache@v2
 
       - name: Install sqlx-cli
         run: cargo install sqlx-cli@0.7.4 --no-default-features --features native-tls,postgres