build(deps): bump envoyproxy/envoy in /cmd/cl-dataplane (#757)

Bumps envoyproxy/envoy from v1.33.2 to v1.34.1.

---
updated-dependencies:
- dependency-name: envoyproxy/envoy
  dependency-version: v1.34.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

cmd/cl-dataplane/Dockerfile

@@ -1,4 +1,4 @@
-FROM envoyproxy/envoy:v1.33.2
+FROM envoyproxy/envoy:v1.34.1
 
 # Populated during the build process, for example, with 'arm64' or 'amd64'.
 ARG TARGETARCH