Try using telemetry with EVP agent

Author: gyuheon0h

ddtelemetry/src/config.rs

@@ -10,7 +10,8 @@ pub const DEFAULT_DD_SITE: &str = "datadoghq.com";
 pub const PROD_INTAKE_SUBDOMAIN: &str = "instrumentation-telemetry-intake";
 
 const DIRECT_TELEMETRY_URL_PATH: &str = "/api/v2/apmtelemetry";
-const AGENT_TELEMETRY_URL_PATH: &str = "/telemetry/proxy/api/v2/apmtelemetry";
+// const AGENT_TELEMETRY_URL_PATH: &str = "/telemetry/proxy/api/v2/apmtelemetry";
+const AGENT_TELEMETRY_URL_PATH: &str = "/evp_proxy/v4/api/v2/errorsintake";
 
 #[cfg(unix)]
 const TRACE_SOCKET_PATH: &str = "/var/run/datadog/apm.socket";