Renovate: capture only versions that respect the new format [skip ci]

Author: Matyrobbrt

.github/renovate.json

@@ -11,7 +11,7 @@
     "minecraft-versions": {
       "defaultRegistryUrlTemplate": "https://piston-meta.mojang.com/mc/game/version_manifest_v2.json",
       "transformTemplates": [
-        "{\"releases\": versions[id ~> /^\\d+\\.\\d+(\\.\\d+)?(-(snapshot|pre|rc)-\\d+)?$/].{ \"version\": $replace($replace(id, \"-snapshot-\", \"-alpha-\"), \"-pre-\", \"-beta-\"), \"releaseTimestamp\": releaseTime }}"
+        "{\"releases\": versions[id ~> /^\\d\\d\\.\\d+(\\.\\d+)?(-(snapshot|pre|rc)-\\d+)?$/].{ \"version\": $replace($replace(id, \"-snapshot-\", \"-alpha-\"), \"-pre-\", \"-beta-\"), \"releaseTimestamp\": releaseTime }}"
       ]
     }
   },
@@ -26,7 +26,8 @@
         "// renovate-mc-version: (?<currentValue>[\\w\\.-]+)"
       ],
       "depNameTemplate": "minecraft-version-list",
-      "datasourceTemplate": "custom.minecraft-versions"
+      "datasourceTemplate": "custom.minecraft-versions",
+      "versioningTemplate": "gradle"
     },
     {
       "customType": "regex",
@@ -55,7 +56,7 @@
       "matchDatasources": [
         "custom.minecraft-versions"
       ],
-      "versioning": "maven",
+      "versioning": "gradle",
       "dependencyDashboardApproval": false,
       "addLabels": [
         "generated-files"