build(deps-dev): bump @nestjs/testing from 7.2.0 to 7.3.0

Bumps [@nestjs/testing](https://github.com/nestjs/nest) from 7.2.0 to 7.3.0.
- [Release notes](https://github.com/nestjs/nest/releases)
- [Commits](nestjs/nest@v7.2.0...v7.3.0)

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

yarn.lock

@@ -698,9 +698,9 @@
     fs-extra "9.0.0"
 
 "@nestjs/testing@^7.0.7":
-  version "7.2.0"
-  resolved "https://registry.yarnpkg.com/@nestjs/testing/-/testing-7.2.0.tgz#af70ca5684173eb8d7e2095074ea4baa1b93514d"
-  integrity sha512-XVU3LgbHwZ5ijtM6xEpN9dLUb9dLzG7UlA//sLDyOfLQNpCFynL9l73JGGqQNyMpFUaSYG7VPWvhNEBBQn1ibQ==
+  version "7.3.0"
+  resolved "https://registry.yarnpkg.com/@nestjs/testing/-/testing-7.3.0.tgz#f79f92bb94949a5baa8377c4489077214cf45b95"
+  integrity sha512-f7flpC98gnjT3rkSj56qoJprInHEP8KVA8RVigs/7DTdrVsOt4JTU/4viOgxJ3UcI87x2OipIM4/68SjVuMC2w==
   dependencies:
     optional "0.1.4"
     tslib "2.0.0"