HHH-11152 add bytebuddy to osgi testing-bundles.xml, explicitly import javassist in envers (temporarily)

hibernate-envers/hibernate-envers.gradle

@@ -71,6 +71,9 @@ sourceSets {
 jar {
     manifest {
         instructionFirst 'Import-Package',
+            // TODO: Remove after Javassist is blown away in ORM 6
+            "javassist;version=\"${javassistVersion}\"",
+            "javassist.util.proxy;version=\"${javassistVersion}\"",
             // TODO: Shouldn't have to explicitly list the JPA packages, but
             // the plugin generates them with [1.0,2) versions.
             'javax.persistence;version="2.1.0"',

hibernate-osgi/src/test/resources/org/hibernate/osgi/test/testing-bundles.xml

@@ -8,5 +8,7 @@
     <feature name='hibernate-osgi-testing' version='5.0.0-SNAPSHOT'>
         <bundle>mvn:com.h2database/h2/1.3.170</bundle>
         <bundle>mvn:org.ops4j.pax.url/pax-url-aether/2.3.0</bundle>
+        <!-- Needed since ByteBuddy is currently a 'provided' scope until ORM 6. -->
+        <bundle>mvn:net.bytebuddy/byte-buddy/1.5.4</bundle>
     </feature>
 </features>