chore(deps): update swatinem/rust-cache action to v2.8.1

Author: renovate[bot]

.github/workflows/ci.yml

@@ -27,7 +27,7 @@ jobs:
           cache: false
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
         with:
           prefix-key: v2-rust
           cache-on-failure: true
@@ -76,7 +76,7 @@ jobs:
           cache: false
 
       - name: Rust Cache
-        uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+        uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
         with:
           prefix-key: v4-rust
           cache-on-failure: true