gh: Update to 1.14.0

Changes:
1.14.0
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Features:
- Improve shell completion #4028
- Enable --json flag completion with multiple comma-separated fields
- Add completion for repo create --gitignore flag
- Add completion for repo create --license flag
- Switch to Cobra's improved bash completion with descriptions
- Enable descriptions in PowerShell completion #4085
- Add completion of -R/--repo flag based on available git remotes #3942
- Add pr merge --admin flag to allow admins to force-merge a pull request #4071

Fixes:
- Fix authenticating with GH_ENTERPRISE_TOKEN and GH_HOST environment variables #4019
- Fix labels display in issue list output #4079
- Fix printing certain GraphQL errors #4087

1.13.1
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Fixes:
- Fix linux packages so that the binary location is /usr/bin/gh not
  /usr/gh #4025

(leot)