build(deps-dev): bump supertest from 6.1.3 to 6.1.5 (#5595)

Bumps [supertest](https://github.com/visionmedia/supertest) from 6.1.3 to 6.1.5.
- [Release notes](https://github.com/visionmedia/supertest/releases)
- [Commits](https://github.com/visionmedia/supertest/compare/v6.1.3...v6.1.5)

---
updated-dependencies:
- dependency-name: supertest
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

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

package.json

@@ -116,7 +116,7 @@
     "stylelint": "^13.13.1",
     "stylelint-config-standard": "^22.0.0",
     "stylelint-scss": "^3.20.1",
-    "supertest": "^6.1.3",
+    "supertest": "^6.1.5",
     "supertest-session": "^4.1.0",
     "wait-on": "^6.0.0",
     "walk-sync": "^3.0.0",

yarn.lock

@@ -8436,10 +8436,10 @@ supertest-session@^4.1.0:
     methods "^1.1.2"
     object-assign "^4.0.1"
 
-supertest@^6.1.3:
-  version "6.1.3"
-  resolved "https://registry.yarnpkg.com/supertest/-/supertest-6.1.3.tgz#3f49ea964514c206c334073e8dc4e70519c7403f"
-  integrity sha512-v2NVRyP73XDewKb65adz+yug1XMtmvij63qIWHZzSX8tp6wiq6xBLUy4SUAd2NII6wIipOmHT/FD9eicpJwdgQ==
+supertest@^6.1.5:
+  version "6.1.5"
+  resolved "https://registry.yarnpkg.com/supertest/-/supertest-6.1.5.tgz#b011c8465281b30c64e9d4be4cb3808b91cd1ec0"
+  integrity sha512-Is3pFB2TxSFPohDS2tIM8h2JOMvUQwbJ9TvTfsWAm89ZZv1CF4VTLAsQz+5+5S1wOgaMqFqSpFriU15L3e2AXQ==
   dependencies:
     methods "^1.1.2"
     superagent "^6.1.0"