Bump zipkinSenderVersion from 3.3.0 to 3.4.0 (#3169)

Bumps `zipkinSenderVersion` from 3.3.0 to 3.4.0.

Updates `io.zipkin.reporter2:zipkin-reporter-brave` from 3.3.0 to 3.4.0
- [Release notes](https://github.com/openzipkin/zipkin-reporter-java/releases)
- [Changelog](https://github.com/openzipkin/zipkin-reporter-java/blob/master/RELEASE.md)
- [Commits](openzipkin/zipkin-reporter-java@3.3.0...3.4.0)

Updates `io.zipkin.reporter2:zipkin-sender-urlconnection` from 3.3.0 to 3.4.0
- [Release notes](https://github.com/openzipkin/zipkin-reporter-java/releases)
- [Changelog](https://github.com/openzipkin/zipkin-reporter-java/blob/master/RELEASE.md)
- [Commits](openzipkin/zipkin-reporter-java@3.3.0...3.4.0)

---
updated-dependencies:
- dependency-name: io.zipkin.reporter2:zipkin-reporter-brave
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: io.zipkin.reporter2:zipkin-sender-urlconnection
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -99,7 +99,7 @@ ext {
 	}
 
 	braveVersion = '6.0.2'
-	zipkinSenderVersion = '3.3.0'
+	zipkinSenderVersion = '3.4.0'
 
 	jsr305Version = '3.0.2'