* chore: upgrade Node.js to 24 and update dependencies
- Upgrade Node.js from 20 to 24.15.0 across all CI jobs and workflows
- Run npm audit fix to resolve CVEs in dependencies
- Generate TLS certs dynamically via scripts/gen-tls-certs.sh instead of using static certs
- Add Makefile targets for running each integration test suite locally
* add GOPATH/bin to PATH before running gen-tls-certs.sh
* Add changelog entry
* refactor makefile
* Refine e2e-enterprise pipeline and scripts
