Fix CLI CVEs

Fix all vulnerabilities in the Okteto CLI Docker image using systematic vulnerability scanning and remediation.

CONTEXT

The source code and Dockerfile for this image are in this repository
The Dockerfile includes multiple binaries: kubectl, helm, kustomize, git, syncthing, and the Okteto CLI itself
Go dependencies for the Okteto CLI binary are in go.mod and go.sum
Go dependencies for internal tools (remote, supervisor, clean) are in tools/go.mod and tools/go.sum
Binary versions are defined as ARG variables at the top of the Dockerfile (lines 3-18)
Internal tools (remote, supervisor, clean) are built from source in the tools-builder stage
Focus on CRITICAL and HIGH severity vulnerabilities first, then address medium/low as needed