build: bump @types/gulp from 4.0.7 to 4.0.8 (#21700)

Bumps [@types/gulp](https://github.com/DefinitelyTyped/DefinitelyTyped/tree/HEAD/types/gulp) from 4.0.7 to 4.0.8.
- [Release notes](https://github.com/DefinitelyTyped/DefinitelyTyped/releases)
- [Commits](https://github.com/DefinitelyTyped/DefinitelyTyped/commits/HEAD/types/gulp)

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -98,7 +98,7 @@
     "@types/browser-sync": "^2.26.1",
     "@types/fs-extra": "^9.0.5",
     "@types/glob": "^7.1.3",
-    "@types/gulp": "4.0.7",
+    "@types/gulp": "4.0.8",
     "@types/inquirer": "^7.3.1",
     "@types/jasmine": "^3.5.4",
     "@types/marked": "^1.2.1",

yarn.lock

@@ -1932,10 +1932,10 @@
   resolved "https://registry.yarnpkg.com/@types/googlemaps/-/googlemaps-3.43.2.tgz#87db9460337c935de6d78f359d8135b4bda0c1cf"
   integrity sha512-qiu5rms7+bgLciKAXpRsxVB1P+Z6gbSxuO8tZfdyQV2k5e5L/7GjUI6Z69rMR+7YFmqU9vwOUglLQ6NJyP/K8g==
 
-"@types/gulp@4.0.7":
-  version "4.0.7"
-  resolved "https://registry.yarnpkg.com/@types/gulp/-/gulp-4.0.7.tgz#cf3928fc4d351284453e876b560ed271bababad5"
-  integrity sha512-AjvRWEMr6pl9yQ5Yyg+2tiv/n6Ifowpi+NjhRqGwpHWSHH21uXPMHEqKVUT3HGVguACOuzgtk9jtWjChSREPFQ==
+"@types/gulp@4.0.8":
+  version "4.0.8"
+  resolved "https://registry.yarnpkg.com/@types/gulp/-/gulp-4.0.8.tgz#a5e43764d400b9818dc79b5ffa86e22a94521037"
+  integrity sha512-RIhiptRwikdFMICikX+Kn8duKR4R7yO2CKMhkcIfvUwZ3UJSjHlvhHDJ2DsurJWETePqdjteO9MLRtObuCt7Sw==
   dependencies:
     "@types/undertaker" "*"
     "@types/vinyl-fs" "*"