Fix/network policies

[puffitos]

Motivation

• Outdated go version and components
• The port for the webhook was missing in the network policy, which was creating timeouts in clusters with hardened network security standards

Changes

Added the port, bumped the dependencies

Tests done

• Unit & E2E tests pass
• Tested 4 use cases manually in a CaaS RKE2 cluster
  • public MTR image with valid signature ✅
  • private MTR image with valid signature ✅
  • private gitlab internal registry with valid signature ✅
  • private gitlab registry with valid signature ✅