address review comment

Author: laurit

instrumentation-api-incubator/javaagent-testing/build.gradle.kts

@@ -10,5 +10,5 @@ dependencies {
 
 tasks.withType<Test>().configureEach {
   jvmArgs("-Dotel.instrumentation.http.client.emit-experimental-telemetry=true")
-  jvmArgs("-Dotel.instrumentation.http-client-url-template-rules=http://localhost:.*/hello/.*,/hello/*")
+  jvmArgs("-Dotel.instrumentation.http.client.url-template-rules=http://localhost:.*/hello/.*,/hello/*")
 }

javaagent-tooling/src/main/java/io/opentelemetry/javaagent/tooling/instrumentation/http/RegexUrlTemplateCustomizerInitializer.java

@@ -33,7 +33,7 @@ public void beforeAgent(AutoConfiguredOpenTelemetrySdk autoConfiguredOpenTelemet
     if (!urlTemplateEnabled) {
       return;
     }
-    String rules = config.getString("otel.instrumentation.http-client-url-template-rules");
+    String rules = config.getString("otel.instrumentation.http.client.url-template-rules");
     if (rules != null && !rules.isEmpty()) {
       parse(rules);
     }