Bump org.asynchttpclient:async-http-client from 2.12.0 to 2.12.3 (#4970)

Bumps [org.asynchttpclient:async-http-client](https://github.com/AsyncHttpClient/async-http-client) from 2.12.0 to 2.12.3.
- [Release notes](https://github.com/AsyncHttpClient/async-http-client/releases)
- [Changelog](https://github.com/AsyncHttpClient/async-http-client/blob/main/CHANGES.md)
- [Commits](AsyncHttpClient/async-http-client@async-http-client-project-2.12.0...async-http-client-project-2.12.3)

---
updated-dependencies:
- dependency-name: org.asynchttpclient:async-http-client
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

build.gradle

@@ -685,7 +685,7 @@ subprojects {
 
             dependency "com.squareup.okhttp3:okhttp:3.14.9"
 
-            dependency "org.asynchttpclient:async-http-client:2.12.0"
+            dependency "org.asynchttpclient:async-http-client:2.12.3"
             dependency "org.apache.httpcomponents:httpclient:4.5.14"
 
             dependency "io.netty:netty-all:4.1.79.Final"