Bump del from 4.1.1 to 7.0.0 (#15120)

* Bump del from 4.1.1 to 7.0.0

Bumps [del](https://github.com/sindresorhus/del) from 4.1.1 to 7.0.0.
- [Release notes](https://github.com/sindresorhus/del/releases)
- [Commits](https://github.com/sindresorhus/del/compare/v4.1.1...v7.0.0)

---
updated-dependencies:
- dependency-name: del
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

* Deduplicate dependencies

* Adjust to ESM-only and API changes

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Steve Repsher <steverep@users.noreply.github.com>

build-scripts/gulp/locale-data.js

@@ -1,4 +1,4 @@
-const del = require("del");
+const del = import("del");
 const path = require("path");
 const gulp = require("gulp");
 const fs = require("fs");
@@ -6,7 +6,7 @@ const paths = require("../paths");
 
 const outDir = "build/locale-data";
 
-gulp.task("clean-locale-data", () => del([outDir]));
+gulp.task("clean-locale-data", async () => (await del).deleteSync([outDir]));
 
 gulp.task("ensure-locale-data-build-dir", (done) => {
   if (!fs.existsSync(outDir)) {