Bump gulp-rename from 2.0.0 to 2.1.0 (prebid#13754)

Bumps [gulp-rename](https://github.com/hparra/gulp-rename) from 2.0.0 to 2.1.0.
- [Release notes](https://github.com/hparra/gulp-rename/releases)
- [Changelog](https://github.com/hparra/gulp-rename/blob/master/CHANGELOG.md)
- [Commits](hparra/gulp-rename@v2.0.0...v2.1.0)

---
updated-dependencies:
- dependency-name: gulp-rename
  dependency-version: 2.1.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

package-lock.json

@@ -84,7 +84,7 @@
     "gulp-filter": "^9.0.1",
     "gulp-if": "^3.0.0",
     "gulp-js-escape": "^1.0.1",
-    "gulp-rename": "^2.0.0",
+    "gulp-rename": "^2.1.0",
     "gulp-replace": "^1.0.0",
     "gulp-sourcemaps": "^3.0.0",
     "gulp-tap": "^2.0.0",