Updating to v5 of codecov.

Author: brentscheffler

.github/workflows/coverage.yml

@@ -41,12 +41,8 @@ jobs:
     - name: Run test suite
       run: make coverage
 
-    - uses: codecov/codecov-action@v4
-      env:
-        CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
+    - uses: codecov/codecov-action@v5
       with:
         files: ./build/logs/clover.xml
-        #flags: unittests # optional
-        #name: codecov-umbrella # optional
-        #fail_ci_if_error: true # optional (default = false)
-        #verbose: true # optional (default = false)
+        token: ${{ secrets.CODECOV_TOKEN }}
+        slug: nimbly/Syndicate