BREAKING: support specPattern, drop support for integrationFolder

Via patch package.
______
Firstly, thanks for your work on this project! 🙂

Today I used [patch-package](https://github.com/ds300/patch-package) to patch `@cypress/code-coverage@3.9.5` for the project I'm working on.

Here is the diff that solved my problem:

```diff
diff --git a/node_modules/@cypress/code-coverage/support-utils.js b/node_modules/@cypress/code-coverage/support-utils.js
index 31e00ee..0c56908 100644
--- a/node_modules/@cypress/code-coverage/support-utils.js
+++ b/node_modules/@cypress/code-coverage/support-utils.js
@@ -10,7 +10,7 @@ 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')
+ const testFilePattern = config('specPattern')

// test files chould be:
// wild card string "**/*.*" (default)
diff --git a/node_modules/@cypress/code-coverage/support.js b/node_modules/@cypress/code-coverage/support.js
index c99ceb2..f51ce4e 100644
--- a/node_modules/@cypress/code-coverage/support.js
+++ b/node_modules/@cypress/code-coverage/support.js
@@ -37,7 +37,6 @@ const logMessage = (s) => {
* If there are more files loaded from support folder, also removes them
*/
const filterSupportFilesFromCoverage = (totalCoverage) => {
- const integrationFolder = Cypress.config('integrationFolder')
const supportFile = Cypress.config('supportFile')

/** @type {string} Cypress run-time config has the support folder string */
@@ -50,16 +49,9 @@ const filterSupportFilesFromCoverage = (totalCoverage) => {
isSupportFile(filename)
)

- // check the edge case
- // if we have files from support folder AND the support folder is not same
- // as the integration, or its prefix (this might remove all app source files)
- // then remove all files from the support folder
- if (!integrationFolder.startsWith(supportFolder)) {
- // remove all covered files from support folder
- coverage = Cypress._.omitBy(totalCoverage, (fileCoverage, filename) =>
- filename.startsWith(supportFolder)
- )
- }
+ coverage = Cypress._.omitBy(totalCoverage, (fileCoverage, filename) =>
+ filename.startsWith(supportFolder)
+ )
return coverage
}

```

This issue body was [partially generated by patch-package](https://github.com/ds300/patch-package/issues/296).