Update dependencies to Kubernetes 1.34

[stefanprodan]

Changes:

• Update build system to Go 1.25
• Update dependencies to Kubernetes 1.34
• Regenerate clientset with Kubernetes 1.34 code-gen

Closes: #1802

[cappyzawa]

I noticed a couple of potential updates that might be worth considering:

1. docs/gitbook/dev/dev-guide.md

   • Currently states go >= 1.19
   • Should this be updated to go >= 1.25, or perhaps removed entirely since the version requirement is already specified in go.mod?

2. .github/workflows/e2e.yaml

   • The kindest/node images are currently using Kubernetes 1.30.0 and 1.24.12
   • Should these be updated to align with Kubernetes 1.34, or is keeping them at 1.30.0 intentional for testing compatibility?

[stefanprodan]

@cappyzawa changing the Kubernetes version will break some of the e2e tests. The version of the service meshes and gateway controllers need to updated along with Kubernetes for this to work.

I will bump the Go version in docs, thanks for the review!

[aryan9600]

lgtm pending the merge conflict resolution!