Fix renovate go version detection in GH workflows

Author: swiatekm

renovate.json

@@ -12,7 +12,7 @@
         "(^|/)\\.github/workflows/.+\\.ya?ml$"
       ],
       "matchStrings": [
-        "go-version: \"~(?<currentValue>.+)\""
+        "go-version: (\"')~(?<currentValue>.+)(\"|')"
       ]
     },
     {