ci: swap nyc with c8 for unit test coverage reports

Author: radomir-sebek

.c8rc.json

@@ -0,0 +1,12 @@
+{
+  "all": true,
+  "check-coverage": false,
+    "lines": 80 ,
+  "reporter": [
+    "html",
+    "text"
+  ],
+  "include": [
+    "src/**/*.js"
+  ]
+}

.github/workflows/checks.yml

@@ -4,11 +4,12 @@ on:
   push:
     branches: ["**"]
   pull_request:
+  workflow_dispatch:
 
 jobs:
   test:
     runs-on: ubuntu-latest
-
+    continue-on-error: false
     steps:
       - name: Checkout repository
         uses: actions/checkout@v3
@@ -21,5 +22,16 @@ jobs:
       - name: Install dependencies
         run: npm ci
 
-      - name: Run Tests
+      - name: Run tests
         run: npm test
+
+      - name: Generate test coverage
+        run: npm run test:coverage
+
+      - name: Upload artifact of unit tests
+        if: '!cancelled()'
+        uses: actions/upload-artifact@v4
+        with:
+          name: unit-test-coverage
+          path: ./coverage/
+          retention-days: 7