chore: upgrade TypeScript to v4

Author: bahmutov

package-lock.json

@@ -72,7 +72,7 @@
     "semantic-release": "17.3.0",
     "serve": "11.3.2",
     "start-server-and-test": "1.11.6",
-    "typescript": "3.8.3",
+    "typescript": "4.1.2",
     "webpack": "4.44.2",
     "webpack-cli": "3.3.12"
   }

package.json

@@ -8,6 +8,7 @@
  */
 const filterSpecsFromCoverage = (totalCoverage, config = Cypress.config) => {
   const integrationFolder = config('integrationFolder')
+  /** @type {string} Cypress run-time config has test files string pattern */
   // @ts-ignore
   const testFilePattern = config('testFiles')
 

support-utils.js

@@ -35,6 +35,8 @@ const logMessage = s => {
 const filterSupportFilesFromCoverage = totalCoverage => {
   const integrationFolder = Cypress.config('integrationFolder')
   const supportFile = Cypress.config('supportFile')
+
+  /** @type {string} Cypress run-time config has the support folder string */
   // @ts-ignore
   const supportFolder = Cypress.config('supportFolder')