version-dep: add PrometheusSimple w/ 10.3.1 pre-release

Author: johnalotoski

cardano-lib/generic-log-config.nix

@@ -53,10 +53,7 @@
         # tracing system.
         "EKGBackend"
         "Forwarder"
-
-        # Include for the 10.3 release.
-        # Also update cardano-lib/testnet-template/config.json.
-        # "PrometheusSimple suffix 127.0.0.1 12798"
+        "PrometheusSimple suffix 127.0.0.1 12798"
 
         # Only one of the following can be enabled, which determines for format
         # of node logging to stdout.

cardano-lib/testnet-template/config.json

@@ -39,6 +39,7 @@
       "backends": [
         "EKGBackend",
         "Forwarder",
+        "PrometheusSimple suffix 127.0.0.1 12798",
         "Stdout HumanFormatColoured"
       ],
       "detail": "DNormal",