Update Swatinem/rust-cache action to v2.7.6

Author: renovate[bot]

.github/workflows/ci.yml

@@ -105,7 +105,7 @@ jobs:
       - run: rustup component add rustfmt
       - run: rustup component add clippy
 
-      - uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2.7.6
 
       - run: cargo fmt --check --all
       - run: cargo clippy --all-targets --all-features --workspace
@@ -122,7 +122,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2.7.6
 
       - run: cargo install cargo-deny --vers ${CARGO_DENY_VERSION}
       - run: cargo deny check
@@ -145,7 +145,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2.7.6
         with:
           # Ensure that we cache from the right target directory. (See below
           # for the details of how and when this gets created.)

.github/workflows/smoke-test.yml

@@ -19,7 +19,7 @@ jobs:
         with:
           persist-credentials: false
 
-      - uses: Swatinem/rust-cache@82a92a6e8fbeee089604da2575dc567ae9ddeaab # v2.7.5
+      - uses: Swatinem/rust-cache@720f7e45ccee46c12a7b1d7bed2ab733be9be5a1 # v2.7.6
       - run: cargo build --package crates_io_smoke_test
       - run: cargo run --package crates_io_smoke_test --quiet
         env: