chore(deps): bump actions/cache from 5 to 6

Bumps [actions/cache](https://github.com/actions/cache) from 5 to 6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](actions/cache@v5...v6)

---
updated-dependencies:
- dependency-name: actions/cache
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build-wheels-rocm.yaml

@@ -152,7 +152,7 @@ jobs:
 
       - name: Cache ROCm installation
         id: cache-rocm
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: C:\Program Files\AMD\ROCm
           key: cache-gha-rocm-${{ env.HIPSDK_INSTALLER_VERSION }}-${{ runner.os }}

.github/workflows/test.yaml

@@ -29,7 +29,7 @@ jobs:
       - name: Install huggingface-hub
         run: pip install huggingface-hub
       - name: Restore model cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface/hub
           key: ${{ runner.os }}-model-${{ env.MODEL_CACHE_KEY }}
@@ -59,7 +59,7 @@ jobs:
           python-version: ${{ matrix.python-version }}
           cache: 'pip'
       - name: Restore model cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface/hub
           key: ${{ runner.os }}-model-${{ env.MODEL_CACHE_KEY }}
@@ -91,7 +91,7 @@ jobs:
           cache: 'pip'
 
       - name: Restore model cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface/hub
           key: ${{ runner.os }}-model-${{ env.MODEL_CACHE_KEY }}
@@ -131,7 +131,7 @@ jobs:
           python3 -c "import platform; print(platform.machine(), platform.architecture())"
 
       - name: Restore model cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface/hub
           key: ${{ runner.os }}-model-${{ env.MODEL_CACHE_KEY }}
@@ -167,7 +167,7 @@ jobs:
           python3 -c "import platform; print(platform.machine(), platform.architecture())"
 
       - name: Restore model cache
-        uses: actions/cache@v5
+        uses: actions/cache@v6
         with:
           path: ~/.cache/huggingface/hub
           key: ${{ runner.os }}-model-${{ env.MODEL_CACHE_KEY }}