Reduce libraries for byte[] to ascii hex conversion.

gradle/dependencies.gradle

@@ -11,11 +11,7 @@ ext {
 libraries.slf4j = 'org.slf4j:slf4j-api:1.7.26'
 libraries.slf4jlog4j = 'org.slf4j:slf4j-log4j12:1.7.26'
 
-libraries.xml_bind = [
-	'javax.xml.bind:jaxb-api:2.3.0',
-	'com.sun.xml.bind:jaxb-core:2.3.0.1',
-	'com.sun.xml.bind:jaxb-impl:2.3.2'
-]
+libraries.jaxb_api = 'javax.xml.bind:jaxb-api:2.3.0'
 
 libraries.jackson = [
     'com.fasterxml.jackson.core:jackson-databind:2.11.0'

ttnhabbridge/build.gradle

@@ -9,7 +9,7 @@ dependencies {
     
     implementation libraries.mqtt_client
     implementation libraries.jackson
-    implementation libraries.xml_bind
+    implementation libraries.jaxb_api
     implementation libraries.retrofit
     compileOnly libraries.spotbugs_annotations