Upgrade to Netty 4.1.42.Final

Closes gh-18609

.bomr/bomr.yaml

@@ -12,10 +12,6 @@ bomr:
         versions:
           # 10.15 requires Java 9
           - '[10.15,)'
-      - project: netty
-        versions:
-          # https://github.com/reactor/reactor-netty/issues/844
-          - '[4.1.40.Final,)'
   verify:
     ignored-dependencies:
       # Avoid conflicting transitive requirements for

spring-boot-project/spring-boot-dependencies/pom.xml

@@ -160,7 +160,7 @@
 		<mysql.version>8.0.18</mysql.version>
 		<nekohtml.version>1.9.22</nekohtml.version>
 		<neo4j-ogm.version>3.2.1</neo4j-ogm.version>
-		<netty.version>4.1.39.Final</netty.version>
+		<netty.version>4.1.42.Final</netty.version>
 		<netty-tcnative.version>2.0.26.Final</netty-tcnative.version>
 		<nio-multipart-parser.version>1.1.0</nio-multipart-parser.version>
 		<ojdbc.version>19.3.0.0</ojdbc.version>