gradle: наводим порядок в зависимостях

libs.gradle

@@ -6,14 +6,15 @@ def slf4j_version = '1.7.30'
 def logback_version = '1.2.3'
 def dagger2_version = '2.33'
 def junit_version = '5.5.2'
+def netty_version = '4.1.22.Final'
 
 ext {
     libs = [
             lombok     : 'org.projectlombok:lombok:1.18.12',
             annotations: 'com.google.code.findbugs:jsr305:3.0.2',
-            guava      : 'com.google.guava:guava:30.1-jre',
             lang3      : 'org.apache.commons:commons-lang3:3.11',
-            netty      : 'io.netty:netty-all:4.1.22.Final',
+            netty      : ["io.netty:netty-transport:${netty_version}",
+                          "io.netty:netty-handler:${netty_version}"],
             reactor    : 'io.projectreactor:reactor-core:3.4.5',
             yaml       : 'org.yaml:snakeyaml:1.28',
             json       : 'com.eclipsesource.minimal-json:minimal-json:0.9.5',