ci: Run tests with additional verbosity

This improves the CI process by running tests with increased verbosity.
It helps to understand why specific tests are failing by providing more
detailed output.

Author: jcfr

.github/workflows/ci.yml

@@ -56,5 +56,5 @@ jobs:
 
     - name: Tests
       run: |
-        ctest --test-dir build -C Release
+        ctest --test-dir build -C Release -VV