Use multi-header B3 propagation by default (#41)

Author: iNikem

agent/src/main/java/com/splunk/opentelemetry/SplunkAgent.java

@@ -32,7 +32,7 @@ public static void agentmain(final String agentArgs, final Instrumentation inst)
     // http://localhost:9080/v1/trace is the default endpoint for SmartAgent
     // http://localhost:14268/api/traces is the default endpoint for otel-collector
     setDefaultConfig("otel.exporter.jaeger.endpoint", "http://localhost:9080/v1/trace");
-    setDefaultConfig("otel.propagators", "b3");
+    setDefaultConfig("otel.propagators", "b3multi");
 
     String max = valueOf(Integer.MAX_VALUE);
     setDefaultConfig("otel.config.max.attrs", max);

build.gradle.kts

@@ -22,7 +22,7 @@ subprojects {
 
   extra.set("versions", mapOf(
       "opentelemetry" to "0.10.0",
-      "opentelemetryJavaagent" to "0.10.1"
+      "opentelemetryJavaagent" to "0.10.2"
   ))
 
   repositories {