ci(renovate): Fix escaping of single quote character

renovate.json

@@ -16,7 +16,7 @@
   {
       "fileMatch": ["*.yaml$"],
       "matchStrings": [
-        "# renovate:\\n\\s+image: \"?\'?(?<depName>[^:\\s]+?):(?<currentValue>[^\"]*?)\"?\'?\\s"
+        "# renovate:\\n\\s+image: \"?'?(?<depName>[^:\\s]+?):(?<currentValue>[^\"]*?)\"?'?\\s"
       ],
       "datasourceTemplate": "docker",
       "versioningTemplate": "docker"