Bump version to 6.1.4 (#2878)

Co-authored-by: Matthias Dittrich <matthi.d@gmail.com>

Author: github-actions[bot]

.config/dotnet-tools.json

@@ -27,7 +27,7 @@
       ]
     },
     "fake-cli": {
-      "version": "6.1.3",
+      "version": "6.1.4",
       "commands": [
         "fake"
       ]