Tweaked Renovate config

Author: bastianeicher

renovate.json

@@ -2,6 +2,10 @@
   "$schema": "https://docs.renovatebot.com/renovate-schema.json",
   "extends": ["config:base", ":disableDependencyDashboard"],
   "packageRules": [
+    {
+      "matchPackagePatterns": ["^gittools"],
+      "allowedVersions": "<4"
+    },
     {
       "matchPackagePatterns": ["Test", "Assert", "Mock", "[Xx]unit", "Moq"],
       "groupName": "Testing deps",
@@ -19,7 +23,7 @@
       "automergeType": "branch"
     },
     {
-      "matchPackagePatterns": ["gittools", "docfx", "SourceLink", "OpenApi"],
+      "matchPackagePatterns": ["docfx", "SourceLink", "OpenApi"],
       "automerge": true,
       "automergeType": "branch"
     }