Add branch protection workspace settings (#6297)

.vscode/settings.json

@@ -1,6 +1,10 @@
 // Place your settings in this file to overwrite default and user settings.
 {
-    "editor.wordWrap": "on",
+  "git.branchProtection": [
+    "main"
+  ],
+  "git.branchProtectionPrompt": "alwaysCommitToNewBranch",
+  "editor.wordWrap": "on",
     "files.eol": "\n",
     "files.trimTrailingWhitespace": true,
     "files.associations": {