Bump bull from 3.20.1 to 3.21.0

Bumps [bull](https://github.com/OptimalBits/bull) from 3.20.1 to 3.21.0.
- [Release notes](https://github.com/OptimalBits/bull/releases)
- [Changelog](https://github.com/OptimalBits/bull/blob/develop/CHANGELOG.md)
- [Commits](https://github.com/OptimalBits/bull/compare/v3.20.1...v3.21.0)

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

package.json

@@ -118,7 +118,7 @@
 		"bcryptjs": "2.4.3",
 		"blurhash": "1.1.3",
 		"broadcast-channel": "3.5.3",
-		"bull": "3.20.1",
+		"bull": "3.21.0",
 		"cafy": "15.2.1",
 		"cbor": "7.0.3",
 		"chalk": "4.1.0",

yarn.lock

@@ -2149,10 +2149,10 @@ builtin-modules@^1.1.1:
   resolved "https://registry.yarnpkg.com/builtin-modules/-/builtin-modules-1.1.1.tgz#270f076c5a72c02f5b65a47df94c5fe3a278892f"
   integrity sha1-Jw8HbFpywC9bZaR9+Uxf46J4iS8=
 
-bull@3.20.1:
-  version "3.20.1"
-  resolved "https://registry.yarnpkg.com/bull/-/bull-3.20.1.tgz#97c4156f48001565baf3c04b81267a5604f40754"
-  integrity sha512-wDwpVu47WKaGhiguEPa/US5UMrtGLPKNPiGFPo4OgVs3EEGzJEWwv3LRPfjJVIf1COdMAN/yowGhZwYmoOonjQ==
+bull@3.21.0:
+  version "3.21.0"
+  resolved "https://registry.yarnpkg.com/bull/-/bull-3.21.0.tgz#60ab64a58469a489a9d4b62d543ac2046ffd3c44"
+  integrity sha512-8eZq28N80dntCvUZum6x7OEHrQUQYjwfUf8JwWR//VKVW92VjVTfsvXgdYoOePGeFY04fdXRolFWPxvKTny3HA==
   dependencies:
     cron-parser "^2.13.0"
     debuglog "^1.0.0"