[Cherry-pick] Bump google.golang.org/protobuf from 1.32.0 to 1.33.0 in /experimental (#1992) (#2021)

Bumps google.golang.org/protobuf from 1.32.0 to 1.33.0.

---
updated-dependencies:
- dependency-name: google.golang.org/protobuf
  dependency-type: direct:production
...

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

Author: kevin85421

experimental/go.mod

@@ -4,7 +4,7 @@ go 1.20
 
 require (
 	google.golang.org/grpc v1.59.0
-	google.golang.org/protobuf v1.32.0
+	google.golang.org/protobuf v1.33.0
 	k8s.io/klog/v2 v2.110.1
 )