Update Swatinem/rust-cache action to v2.8.1

Author: renovate[bot]

.github/workflows/main.yml

@@ -18,7 +18,7 @@ jobs:
       - run: rustup override set ${{ env.RUST_VERSION }}
       - run: rustup component add clippy
       - run: rustup component add rustfmt
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
 
       - run: cargo clippy --workspace -- -D warnings
       - run: cargo fmt --check --all
@@ -30,7 +30,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
       - run: rustup override set ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
       - name: Install Zola
         run: cargo install --locked --git https://github.com/getzola/zola --rev 45d3f8d6285f0b47013c5fa31eb405332118af8b
 
@@ -51,7 +51,7 @@ jobs:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
 
       - run: rustup override set ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
 
       - run: cargo test -p front_matter -- --include-ignored date_is_set
 

.github/workflows/snapshot_tests.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - run: rustup override set ${{ env.RUST_VERSION }}
-      - uses: Swatinem/rust-cache@98c8021b550208e191a6a3145459bfc9fb29c4c0 # v2.8.0
+      - uses: Swatinem/rust-cache@f13886b937689c021905a6b90929199931d60db1 # v2.8.1
       - name: Install Zola
         run: cargo install --locked --git https://github.com/getzola/zola --rev 45d3f8d6285f0b47013c5fa31eb405332118af8b