Add codecov configs

.github/workflows/pr-builder.yml

@@ -38,3 +38,8 @@ jobs:
             ${{ runner.os }}-
       - name: Build with Maven
         run: mvn clean install -U -B
+
+      - name: Upload coverage reports to Codecov
+        uses: codecov/[email protected]
+        with:
+          token: ${{ secrets.CODECOV_TOKEN }}

codecov.yml

@@ -0,0 +1,15 @@
+codecov:
+  require_ci_to_pass: yes
+  notify:
+    wait_for_ci: yes
+coverage:
+  status:
+    project: # checks the effect for the overall code coverage rate of the repository.
+      default:
+        enabled: yes
+        threshold: null
+        target: auto
+    patch:  # This status indicates the extent of code coverage achieved by the pull request.
+      default:
+        target: 80%
+        threshold: 40% # With a target of 80% and a threshold of 40%, the acceptable coverage range is 40% to 80%.