CI: Run infcover during test runs.
diff --git a/.github/workflows/configure.yml b/.github/workflows/configure.yml
index da311a8..b8b8e0d 100644
--- a/.github/workflows/configure.yml
+++ b/.github/workflows/configure.yml
@@ -43,7 +43,9 @@
       working-directory: ${{ matrix.build-dir }}
 
     - name: Run test cases
-      run: make test
+      run: |
+        make test
+        make cover
       working-directory: ${{ matrix.build-dir }}
 
     - name: Upload build errors