Update dependency webpack-merge to v5.6.1 (#5871)

Co-authored-by: Renovate Bot <bot@renovateapp.com>

Author: renovate[bot]

package.json

@@ -1070,7 +1070,7 @@
     "vscode-test": "1.4.1",
     "webpack": "5.10.0",
     "webpack-cli": "4.2.0",
-    "webpack-merge": "5.5.0",
+    "webpack-merge": "5.6.1",
     "webpack-stream": "6.1.1"
   }
 }

yarn.lock

@@ -5716,10 +5716,10 @@ webpack-cli@4.2.0:
     v8-compile-cache "^2.2.0"
     webpack-merge "^4.2.2"
 
-webpack-merge@5.5.0:
-  version "5.5.0"
-  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-5.5.0.tgz#18b860249ee3f940ed1607c6b0cf1912b27dbf44"
-  integrity sha512-EYKu2To70zpXh65y+ERG/8TbOy0YxPERP1hGvl5nnx7zY0HLZU57zNRlIowiPYQ8lI7kXsCHa5owKMgv/ImW/w==
+webpack-merge@5.6.1:
+  version "5.6.1"
+  resolved "https://registry.yarnpkg.com/webpack-merge/-/webpack-merge-5.6.1.tgz#93c886a6871486a799e5dd32d312008109694b5b"
+  integrity sha512-5n19s1YcyQkBJkYtE+Tq3br/Ax6ofQjMA4U8PUfpcaRB2cvxJNoikUK4RQN3sEJt1Fl4Dym3qc2AnODgGK0vKg==
   dependencies:
     clone-deep "^4.0.1"
     wildcard "^2.0.0"