Bump micromatch, @microsoft/sp-build-web, gulp and jest

Bumps [micromatch](https://github.com/micromatch/micromatch) to 4.0.8 and updates ancestor dependencies [micromatch](https://github.com/micromatch/micromatch), [@microsoft/sp-build-web](http://aka.ms/spfx), [gulp](https://github.com/gulpjs/gulp) and [jest](https://github.com/jestjs/jest/tree/HEAD/packages/jest). These dependencies need to be updated together.


Updates `micromatch` from 4.0.5 to 4.0.8
- [Release notes](https://github.com/micromatch/micromatch/releases)
- [Changelog](https://github.com/micromatch/micromatch/blob/master/CHANGELOG.md)
- [Commits](https://github.com/micromatch/micromatch/compare/4.0.5...4.0.8)

Updates `@microsoft/sp-build-web` from 1.18.0 to 1.20.1

Updates `gulp` from 4.0.2 to 5.0.0
- [Release notes](https://github.com/gulpjs/gulp/releases)
- [Changelog](https://github.com/gulpjs/gulp/blob/master/CHANGELOG.md)
- [Commits](https://github.com/gulpjs/gulp/compare/v4.0.2...v5.0.0)

Updates `jest` from 23.6.0 to 29.7.0
- [Release notes](https://github.com/jestjs/jest/releases)
- [Changelog](https://github.com/jestjs/jest/blob/main/CHANGELOG.md)
- [Commits](https://github.com/jestjs/jest/commits/v29.7.0/packages/jest)

---
updated-dependencies:
- dependency-name: micromatch
  dependency-type: indirect
- dependency-name: "@microsoft/sp-build-web"
  dependency-type: direct:development
- dependency-name: gulp
  dependency-type: direct:development
- dependency-name: jest
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

samples/react-page-navigator/package.json

@@ -29,7 +29,7 @@
     "@types/react": "16.8.8"
   },
   "devDependencies": {
-    "@microsoft/sp-build-web": "1.18.0",
+    "@microsoft/sp-build-web": "1.20.1",
     "@microsoft/sp-module-interfaces": "1.14.0",
     "@microsoft/sp-tslint-rules": "1.14.0",
     "@types/es6-promise": "0.0.33",
@@ -38,8 +38,8 @@
     "@types/webpack-env": "1.13.1",
     "@voitanos/jest-preset-spfx-react16": "^1.1.0",
     "ajv": "~5.2.2",
-    "gulp": "4.0.2",
+    "gulp": "5.0.0",
     "gulp-sequence": "1.0.0",
-    "jest": "^23.6.0"
+    "jest": "^29.7.0"
   }
 }