style: format exclude-paths for better readability and add extra-files section

Author: zurfjereluhmie

release-please-config.json

@@ -1,8 +1,20 @@
 {
   "$schema": "https://raw.githubusercontent.com/googleapis/release-please/main/schemas/config.json",
   "release-type": "python",
-  "exclude-paths": [".github", "demo", "docs", "tests"],
+  "exclude-paths": [
+    ".github",
+    "demo",
+    "docs",
+    "tests"
+  ],
   "packages": {
     ".": {}
-  }
-}
+  },
+  "extra-files": [
+    {
+      "path": "uv.lock",
+      "type": "toml",
+      "jsonpath": "$.package[?(@.name.value=='evalwire')].version"
+    }
+  ]
+}