fix: run tests in release workflow

Add test execution to release.yml to ensure releases are validated
with the full test suite before creating release artifacts.

Closes #21

Author: xcrtp

.github/workflows/release.yml

@@ -36,12 +36,15 @@ jobs:
 
       - name: Configure CMake
         run: |
-          cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DXCMIXIN_BUILD_EXAMPLES=ON
+          cmake -B build -G Ninja -DCMAKE_BUILD_TYPE=Release -DXCMIXIN_BUILD_EXAMPLES=ON -DXCMIXIN_BUILD_TESTS=ON
 
       - name: Build
         run: |
           cmake --build build --parallel
 
+      - name: Run tests
+        run: ctest --test-dir build --output-on-failure
+
       - name: Run examples
         run: |
           for exe in build/examples/*_example; do