renovate: drop the github-tags manager, which duplicated the argocd one

renovate.json

@@ -25,16 +25,6 @@
     ]
   },
   "customManagers": [
-    {
-      "customType": "regex",
-      "managerFilePatterns": [
-        "/apps/templates/.+\\.yaml$/"
-      ],
-      "matchStrings": [
-        "repoURL: https://github.com/(?<depName>[^/]+/[^/\\.]+)\\.git\\n\\s+targetRevision: (?<currentValue>.*)"
-      ],
-      "datasourceTemplate": "github-tags"
-    },
     {
       "customType": "regex",
       "managerFilePatterns": [
@@ -54,14 +44,6 @@
       "semanticCommits": "enabled",
       "commitMessageTopic": "helm chart {{depName}}",
       "separateMinorPatch": true
-    },
-    {
-      "matchDatasources": [
-        "github-tags"
-      ],
-      "semanticCommits": "enabled",
-      "commitMessageTopic": "{{depName}}",
-      "separateMinorPatch": true
     }
   ]
 }