tests: drop 1 extension to trigger rebuild

Author: samrose

nix/ext/versions.json

@@ -572,14 +572,6 @@
     }
   },
   "wrappers": {
-    "0.3.0": {
-      "postgresql": [
-        "15"
-      ],
-      "hash": "sha256-ogpF8NJ7kW3Ut8jaKMDiKYIXnI38nfRq2mMK4rqFAIA=",
-      "pgrx": "0.11.3",
-      "rust": "1.76.0"
-    },
     "0.4.1": {
       "postgresql": [
         "15"