Downgrade Netty to 4.1.93-Final

Our benchmarks saw a serious performance decrease with the upgrade from
Netty 4.1.88 to 4.1.94. The problem was tracked down to a single PR in
4.1.94, so we avoid 4.1.94 for now.

Fixes #10401

SECURITY.md

@@ -396,7 +396,7 @@ grpc-netty version | netty-handler version | netty-tcnative-boringssl-static ver
 1.50.x-1.53.x      | 4.1.79.Final          | 2.0.54.Final
 1.54.x-1.55.x      | 4.1.87.Final          | 2.0.56.Final
 1.56.x             | 4.1.87.Final          | 2.0.61.Final
-1.57.x-            | 4.1.94.Final          | 2.0.61.Final
+1.57.x-            | 4.1.93.Final          | 2.0.61.Final
 
 _(grpc-netty-shaded avoids issues with keeping these versions in sync.)_
 

gradle/libs.versions.toml

@@ -13,7 +13,7 @@ googleauth = "1.4.0"
 #
 # Allowed to be different from guava-jre.
 guava = '32.0.1-android'
-netty = '4.1.94.Final'
+netty = '4.1.93.Final'
 # Keep the following references of tcnative version in sync whenever it's updated:
 #   SECURITY.md
 nettytcnative = '2.0.61.Final'

repositories.bzl

@@ -25,20 +25,20 @@ IO_GRPC_GRPC_JAVA_ARTIFACTS = [
     "com.google.truth:truth:1.1.5",
     "com.squareup.okhttp:okhttp:2.7.5",
     "com.squareup.okio:okio:2.10.0",
-    "io.netty:netty-buffer:4.1.94.Final",
-    "io.netty:netty-codec-http2:4.1.94.Final",
-    "io.netty:netty-codec-http:4.1.94.Final",
-    "io.netty:netty-codec-socks:4.1.94.Final",
-    "io.netty:netty-codec:4.1.94.Final",
-    "io.netty:netty-common:4.1.94.Final",
-    "io.netty:netty-handler-proxy:4.1.94.Final",
-    "io.netty:netty-handler:4.1.94.Final",
-    "io.netty:netty-resolver:4.1.94.Final",
+    "io.netty:netty-buffer:4.1.93.Final",
+    "io.netty:netty-codec-http2:4.1.93.Final",
+    "io.netty:netty-codec-http:4.1.93.Final",
+    "io.netty:netty-codec-socks:4.1.93.Final",
+    "io.netty:netty-codec:4.1.93.Final",
+    "io.netty:netty-common:4.1.93.Final",
+    "io.netty:netty-handler-proxy:4.1.93.Final",
+    "io.netty:netty-handler:4.1.93.Final",
+    "io.netty:netty-resolver:4.1.93.Final",
     "io.netty:netty-tcnative-boringssl-static:2.0.61.Final",
     "io.netty:netty-tcnative-classes:2.0.61.Final",
-    "io.netty:netty-transport-native-epoll:jar:linux-x86_64:4.1.94.Final",
-    "io.netty:netty-transport-native-unix-common:4.1.94.Final",
-    "io.netty:netty-transport:4.1.94.Final",
+    "io.netty:netty-transport-native-epoll:jar:linux-x86_64:4.1.93.Final",
+    "io.netty:netty-transport-native-unix-common:4.1.93.Final",
+    "io.netty:netty-transport:4.1.93.Final",
     "io.opencensus:opencensus-api:0.31.0",
     "io.opencensus:opencensus-contrib-grpc-metrics:0.31.0",
     "io.perfmark:perfmark-api:0.26.0",