build(deps-dev): bump slash from 3.0.0 to 4.0.0

Bumps [slash](https://github.com/sindresorhus/slash) from 3.0.0 to 4.0.0.
- [Release notes](https://github.com/sindresorhus/slash/releases)
- [Commits](sindresorhus/slash@v3.0.0...v4.0.0)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

package.json

@@ -124,6 +124,6 @@
     "husky": "^4.3.8",
     "jest-in-case": "^1.0.2",
     "npm-run-all": "^4.1.5",
-    "slash": "^3.0.0"
+    "slash": "^4.0.0"
   }
 }

yarn.lock

@@ -7646,6 +7646,11 @@ slash@^3.0.0:
   resolved "https://registry.yarnpkg.com/slash/-/slash-3.0.0.tgz#6539be870c165adbd5240220dbe361f1bc4d4634"
   integrity sha512-g9Q1haeby36OSStwb4ntCGGGaKsaVSjQ68fBxoQcutl5fS1vuY18H3wSt3jFyFtrkx+Kz0V1G85A4MyAdDMi2Q==
 
+slash@^4.0.0:
+  version "4.0.0"
+  resolved "https://registry.yarnpkg.com/slash/-/slash-4.0.0.tgz#2422372176c4c6c5addb5e2ada885af984b396a7"
+  integrity sha512-3dOsAHXXUkQTpOYcoAxLIorMTp4gIQr5IW3iVb7A7lFIp0VHhnynm9izx6TssdrIcVIESAlVjtnO2K8bg+Coew==
+
 slice-ansi@^3.0.0:
   version "3.0.0"
   resolved "https://registry.yarnpkg.com/slice-ansi/-/slice-ansi-3.0.0.tgz#31ddc10930a1b7e0b67b08c96c2f49b77a789787"