CI: Add timeouts to github actions, continue on test failures

Author: tstenner

.github/workflows/cppcmake.yml

@@ -63,6 +63,10 @@ jobs:
         path: build/package
     - name: unit tests (internal functions)
       run: build/install/bin/lsl_test_internal --order rand --wait-for-keypress never --durations yes
+      timeout-minutes: 5
+      continue-on-error: true
     - name: unit tests (exported functions)
       shell: bash
-      run: build/install/bin/lsl_test_exported --order rand --wait-for-keypress never --durations yes || [ "${{ matrix.os }}" = "macOS-latest" ]
+      run: build/install/bin/lsl_test_exported --order rand --wait-for-keypress never --durations yes
+      timeout-minutes: 5
+      continue-on-error: true