.github: don't ignore failing tests anymore

Now that the test suite has been fixed to work on the CI, we no longer
need (and should) ignore broken test runs.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>

.github/workflows/build-xserver.yml

@@ -57,9 +57,8 @@ jobs:
             - name: build
               run:  .gitlab-ci/meson-build.sh
 
-            - name: tests (may fail)
-              continue-on-error: true
-              run:  meson test -C "${{ env.MESON_BUILDDIR }}" --print-errorlogs || true
+            - name: tests
+              run:  meson test -C "${{ env.MESON_BUILDDIR }}" --print-errorlogs
               env:
                   XTEST_DIR:  ${{ env.X11_BUILD_DIR }}/xts
                   PIGLIT_DIR: ${{ env.X11_BUILD_DIR }}/piglit