feat(deployment): make deploy() timeout configurable

[subhashkhileri]

JIRA : https://issues.redhat.com/browse/RHDHBUGS-2761

Summary

• deploy() now accepts an optional { timeout } parameter to control the Playwright test timeout during deployment
  • Default 600_000 (600s) — backward compatible
  • Custom number to override (e.g., 900_000 for 15 min)
  • 0 for no timeout (infinite)
  • null to skip test.setTimeout entirely and let the consumer control the timeout
• Updated docs: API reference, deployment guide, changelog, version refs, and tsc:check script in code snippets
• Bumped package version to 1.1.12