Bump regitlint from 6.3.11 to 6.3.12 (#1332)

Author: dependabot[bot]

.config/dotnet-tools.json

@@ -9,7 +9,7 @@
       ]
     },
     "regitlint": {
-      "version": "6.3.11",
+      "version": "6.3.12",
       "commands": [
         "regitlint"
       ]