Bump actions/cache from 3.2.4 to 3.2.6

Bumps [actions/cache](https://github.com/actions/cache) from 3.2.4 to 3.2.6.
- [Release notes](https://github.com/actions/cache/releases)
- [Changelog](https://github.com/actions/cache/blob/main/RELEASES.md)
- [Commits](https://github.com/actions/cache/compare/v3.2.4...v3.2.6)

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

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

.github/workflows/build-docker.yml

@@ -70,7 +70,7 @@ jobs:
 
       - name: Cache
         id: cache
-        uses: actions/cache@v3.2.4
+        uses: actions/cache@v3.2.6
         with:
           path: ~/.ccache
           key: docker-build-${{ matrix.branch }}-${{ github.sha }}

.github/workflows/macos-build.yml

@@ -59,7 +59,7 @@ jobs:
       # Qt caching
       - name: Cache Qt
         id: cache-qt
-        uses: actions/cache@v3.2.4
+        uses: actions/cache@v3.2.6
         with:
           path: ${{ env.DEPS_CACHE_DIR }}/Qt/${{ env.QT_VERSION }}
           key: mac-qt-${{ env.QT_VERSION }}
@@ -82,7 +82,7 @@ jobs:
       # QGIS-deps caching
       - name: Cache qgis-deps
         id: cache-deps
-        uses: actions/cache@v3.2.4
+        uses: actions/cache@v3.2.6
         with:
           path: ${{ env.DEPS_CACHE_DIR }}/QGIS/qgis-deps-${{ env.QGIS_DEPS_VERSION }}.${{ env.QGIS_DEPS_PATCH_VERSION }}
           key: mac-qgis-deps-${{ env.QGIS_DEPS_VERSION }}.${{ env.QGIS_DEPS_PATCH_VERSION }}