Use npm instead of Yarn

.github/workflows/main.yml

@@ -11,7 +11,7 @@ jobs:
       - name: Lint
         run: npm run lint
       - name: Run tests and collect coverage
-        run: yarn run test
+        run: npm run test
       - name: Upload coverage to Codecov (demo)
         uses: ./
         with:

package-lock.json

@@ -7412,12 +7412,6 @@
         "camelcase": "^5.0.0",
         "decamelize": "^1.2.0"
       }
-    },
-    "yarn": {
-      "version": "1.22.10",
-      "resolved": "https://registry.npmjs.org/yarn/-/yarn-1.22.10.tgz",
-      "integrity": "sha512-IanQGI9RRPAN87VGTF7zs2uxkSyQSrSPsju0COgbsKQOOXr5LtcVPeyXWgwVa0ywG3d8dg6kSYKGBuYK021qeA==",
-      "dev": true
     }
   }
 }

package.json

@@ -5,7 +5,7 @@
   "main": "index.js",
   "scripts": {
     "lint": "eslint src/*.*",
-    "test": "yarn run test-script && yarn run test-calculator && yarn run test-coverage",
+    "test": "npm run test-script && npm run test-calculator && npm run test-coverage",
     "test-calculator": "jest --testPathPattern=demo/calculator/ --coverage --coverageDirectory=coverage/calculator",
     "test-coverage": "jest --testPathPattern=demo/coverage-test/ --coverage --coverageDirectory=coverage/coverage-test",
     "test-script": "jest --testPathPattern=src/ --coverage --coverageDirectory=coverage/script",
@@ -38,7 +38,6 @@
     "jest": "^26.6.3",
     "jest-junit": "^12.2.0",
     "ts-jest": "^26.5.6",
-    "typescript": "^4.3.2",
-    "yarn": "^1.22.10"
+    "typescript": "^4.3.2"
   }
 }