Bump Swatinem/rust-cache from 2.8.2 to 2.9.1

Bumps [Swatinem/rust-cache](https://github.com/swatinem/rust-cache) from 2.8.2 to 2.9.1.
- [Release notes](https://github.com/swatinem/rust-cache/releases)
- [Changelog](https://github.com/Swatinem/rust-cache/blob/master/CHANGELOG.md)
- [Commits](Swatinem/rust-cache@v2.8.2...v2.9.1)

---
updated-dependencies:
- dependency-name: Swatinem/rust-cache
  dependency-version: 2.9.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -39,7 +39,7 @@ jobs:
           rustup override set "${{ matrix.toolchain }}"
 
     # Load cache before doing any Rust builds
-    - uses: Swatinem/rust-cache@v2.8.2
+    - uses: Swatinem/rust-cache@v2.9.1
 
     # The repository does not have a versioned Cargo.lock file.
     # As a substitute, we always test on minimal and maximal versions.
@@ -109,7 +109,7 @@ jobs:
           rustup toolchain install "${{ matrix.toolchain }}" --profile=minimal --component=clippy
           rustup override set "${{ matrix.toolchain }}"
 
-    - uses: Swatinem/rust-cache@v2.8.2
+    - uses: Swatinem/rust-cache@v2.9.1
       with:
         # Job's likely to fail and yet have useful cache material.
         cache-on-failure: true
@@ -166,7 +166,7 @@ jobs:
           # Needed to ensure `main` branch is needed
           fetch-depth: 0
 
-      - uses: Swatinem/rust-cache@v2.8.2
+      - uses: Swatinem/rust-cache@v2.9.1
         with:
           # Job's likely to fail and yet have useful cache material.
           cache-on-failure: true
@@ -193,7 +193,7 @@ jobs:
     steps:
     - uses: actions/checkout@v6
 
-    - uses: Swatinem/rust-cache@v2.8.2
+    - uses: Swatinem/rust-cache@v2.9.1
 
     - name: Check semver
       uses: obi1kenobi/cargo-semver-checks-action@v2.9