Downgrade netty and pekko for 3.0.x patch branch

Author: mkurz

pom.xml

@@ -84,9 +84,9 @@
     </dependencyManagement>
 
     <properties>
-        <netty.version>4.2.6.Final</netty.version>
+        <netty.version>4.1.127.Final</netty.version>
         <reactive-streams.version>1.0.4</reactive-streams.version>
-        <pekko-stream.version>1.2.0</pekko-stream.version>
+        <pekko-stream.version>1.0.3</pekko-stream.version>
         <maven-bundle-plugin.version>5.1.9</maven-bundle-plugin.version>
         <maven-jar-plugin.version>3.4.2</maven-jar-plugin.version>
     </properties>