use otel for observability (#635)

## Description:

## Please complete the following:

- [ ] I have added screenshots for all UI updates
- [ ] I confirm I have thoroughly tested these changes and take full
responsibility for any bugs introduced
- [ ] I understand that submitting code with bugs that could have been
caught through manual testing blocks releases and new features for all
contributors

## Please put your Discord username so you can be contacted if a bug or
regression is found:

<DISCORD USERNAME>

Co-authored-by: evan <openfrontio@gmail.com>

tests/util/TestServerConfig.ts

@@ -3,6 +3,18 @@ import { GameMapType } from "../../src/core/game/Game";
 import { GameID } from "../../src/core/Schemas";
 
 export class TestServerConfig implements ServerConfig {
+  otelEnabled(): boolean {
+    throw new Error("Method not implemented.");
+  }
+  otelEndpoint(): string {
+    throw new Error("Method not implemented.");
+  }
+  otelUsername(): string {
+    throw new Error("Method not implemented.");
+  }
+  otelPassword(): string {
+    throw new Error("Method not implemented.");
+  }
   region(): string {
     return "test";
   }