Migrate jetty httpclient build files to kotlin (#3421)

instrumentation/jetty-httpclient/jetty-httpclient-9.2/javaagent/build.gradle.kts

@@ -0,0 +1,25 @@
+plugins {
+  id("otel.javaagent-instrumentation")
+}
+
+muzzle {
+  pass {
+    group.set("org.eclipse.jetty")
+    module.set("jetty-client")
+    versions.set("[9.2,9.4.+)")
+  }
+}
+
+
+//Jetty client 9.2 is the best starting point, HttpClient.send() is stable there
+val jettyVers_base9 = "9.2.0.v20140526"
+
+
+dependencies {
+  implementation(project(":instrumentation:jetty-httpclient:jetty-httpclient-9.2:library"))
+
+  library("org.eclipse.jetty:jetty-client:${jettyVers_base9}")
+  latestDepTestLibrary("org.eclipse.jetty:jetty-client:9.+")
+
+  testImplementation(project(":instrumentation:jetty-httpclient:jetty-httpclient-9.2:testing"))
+}

instrumentation/jetty-httpclient/jetty-httpclient-9.2/library/build.gradle.kts

@@ -0,0 +1,16 @@
+plugins {
+  id("otel.library-instrumentation")
+}
+
+
+//Jetty client 9.2 is the best starting point, HttpClient.send() is stable there
+val jettyVers_base9 = "9.2.0.v20140526"
+
+dependencies {
+  library("org.eclipse.jetty:jetty-client:${jettyVers_base9}")
+  latestDepTestLibrary("org.eclipse.jetty:jetty-client:9.+")
+  testImplementation(project(":instrumentation:jetty-httpclient::jetty-httpclient-9.2:testing"))
+
+  implementation("org.slf4j:slf4j-api")
+}
+

instrumentation/jetty-httpclient/jetty-httpclient-9.2/testing/build.gradle.kts

@@ -0,0 +1,19 @@
+plugins {
+  id("otel.java-conventions")
+}
+
+//Jetty client 9.2 is the best starting point, HttpClient.send() is stable there
+val jettyVers_base9 = "9.2.0.v20140526"
+
+dependencies {
+  api(project(":testing-common"))
+
+
+  api("org.eclipse.jetty:jetty-client:${jettyVers_base9}")
+
+  implementation("org.junit.jupiter:junit-jupiter-api")
+
+  implementation("org.codehaus.groovy:groovy-all")
+  implementation("io.opentelemetry:opentelemetry-api")
+  implementation("org.spockframework:spock-core")
+}