Add failed assertion message in CI

Author: ricardoV94

.github/workflows/test.yml

@@ -123,7 +123,7 @@ jobs:
           pip install -e ./
           mamba list && pip freeze
           python -c 'import pytensor; print(pytensor.config.__str__(print_doc=False))'
-          python -c 'import pytensor; assert(pytensor.config.blas__ldflags != "")'
+          python -c 'import pytensor; assert pytensor.config.blas__ldflags != "", "Blas flags are empty"'
         env:
           PYTHON_VERSION: ${{ matrix.python-version }}
           INSTALL_NUMBA: ${{ matrix.install-numba }}
@@ -175,7 +175,7 @@ jobs:
             pip install -e ./
             mamba list && pip freeze
             python -c 'import pytensor; print(pytensor.config.__str__(print_doc=False))'
-            python -c 'import pytensor; assert(pytensor.config.blas__ldflags != "")'
+            python -c 'import pytensor; assert pytensor.config.blas__ldflags != "", "Blas flags are empty"'
           env:
             PYTHON_VERSION: 3.9
         - name: Download previous benchmark data