Bump actions/cache from 4 to 5

Bumps [actions/cache](https://github.com/actions/cache) from 4 to 5.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v4...v5)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/coverage.yml

@@ -13,14 +13,14 @@ jobs:
         uses: actions/checkout@v6
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: ${{ runner.os }}-cargo
 
       - name: Cache cargo build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: target
           key: ${{ runner.os }}-stable-coverage-build-target-${{ hashFiles('**/Cargo.lock') }}

.github/workflows/rust-audit.yaml

@@ -7,19 +7,19 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Cache cargo registry
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo/registry
           key: ${{ runner.os }}-cargo-registry-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo index
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo/git
           key: ${{ runner.os }}-cargo-index-${{ hashFiles('**/Cargo.lock') }}
 
       - name: Cache cargo build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: target
           key: ${{ runner.os }}-stable-cargo-build-target-${{ hashFiles('**/Cargo.lock') }}

.github/workflows/rust.yml

@@ -29,14 +29,14 @@ jobs:
           submodules: "recursive"
 
       - name: Cache cargo
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: ~/.cargo
           key: ${{ runner.os }}-cargo-${{ hashFiles('**/Cargo.lock') }}
           restore-keys: ${{ runner.os }}-cargo
 
       - name: Cache cargo build
-        uses: actions/cache@v4
+        uses: actions/cache@v5
         with:
           path: target
           key: ${{ runner.os }}-${{ matrix.rust }}-build-target-${{ hashFiles('**/Cargo.lock') }}