Update Swatinem/rust-cache digest to 720f7e4

Author: nextest-bot

.github/workflows/ci.yml

@@ -19,7 +19,7 @@ jobs:
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: rustfmt, clippy
-      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2
       - name: Lint (clippy)
         run: cargo clippy --all-features --all-targets
       - name: Lint (rustfmt)
@@ -50,7 +50,7 @@ jobs:
         with:
           toolchain: ${{ matrix.rust-version }}
       - uses: taiki-e/install-action@nextest
-      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2
       - name: Build
         run: cargo build --all-features
       - name: Test

.github/workflows/docs.yml

@@ -13,7 +13,7 @@ jobs:
     steps:
       - uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4
       - uses: dtolnay/rust-toolchain@stable
-      - uses: Swatinem/rust-cache@23bce251a8cd2ffc3c1075eaa2367cf899916d84 # v2
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2
       - name: Build rustdoc
         run: cargo doc --all-features --workspace
       - name: Organize