chore: Move tracing decorators into the codebase (#4623)

* Vendorize tracing, finally fix service name issues

* Upgrade datadaog-metrics, rename decorators -> tracing

* lint

server/collaboration/AuthenticationExtension.ts

@@ -1,11 +1,11 @@
 import { onAuthenticatePayload, Extension } from "@hocuspocus/server";
-import { APM } from "@server/logging/tracing";
+import { trace } from "@server/logging/tracing";
 import Document from "@server/models/Document";
 import { can } from "@server/policies";
 import { getUserForJWT } from "@server/utils/jwt";
 import { AuthenticationError } from "../errors";
 
-@APM.trace()
+@trace()
 export default class AuthenticationExtension implements Extension {
   async onAuthenticate({
     connection,