Add lighthouse (eth) service (2)

spec/services.yaml

@@ -369,7 +369,7 @@ services:
         auth:
           type: basic
           env: GWEICZ_IPFS_AUTH
-        url: https://eth-cl.gwei.cz
+        url: https://eth-cl.gwei.cz/eth/v1/node/version
         query: $match(data.version,/^Lighthouse\/v([^-]+)/)[0].groups[0]
       to:
         strategy: github_tags