fix: remove 'v' prefix from truncated versions in Renovate

renovate-truncated-versions.json

@@ -12,7 +12,7 @@
         "goreleaser/goreleaser",
         "gitlab.com/gitlab-com/gl-infra/jsonnet-tool"
       ],
-      "extractVersion": "^(?<version>v?\\d+\\.\\d+)"
+      "extractVersion": "^v?(?<version>\\d+\\.\\d+)"
     }
   ]
 }