ci: saving cache even if the build fails

See: https://github.com/actions/cache/blob/main/caching-strategies.md#saving-cache-even-if-the-build-fails

.github/workflows/ci-conan.yml

@@ -132,6 +132,7 @@ jobs:
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
       - name: Cache Conan data
         uses: actions/cache@v3
+        if: always()
         env:
           cache-name: cache-conan-data
         with:

.github/workflows/ci-test-package-cmake.yml

@@ -131,6 +131,7 @@ jobs:
       - run: echo "cache_id=$(date --utc '+%V')" >> $GITHUB_ENV
       - name: Cache Conan data
         uses: actions/cache@v3
+        if: always()
         env:
           cache-name: cache-conan-data
         with: