fix: Github CLI install link in Contributing guide

[hana-akamai]

Description 📝

Fix the github CLI link in our contributing guide leading to a 404 error

How to test 🧪

Reproduction steps

(How to reproduce the issue, if applicable)

• Go to the old link https://cli.github.com/manual/installation and notice a 404 error

Verification steps

(How to verify changes)

• Go to the new link https://github.com/cli/cli#installation, there should not be a 404 error

As an Author I have considered 🤔

Check all that apply

• 👀 Doing a self review
• ❔ Our contribution guidelines
• 🤏 Splitting feature into small PRs
• ➕ Adding a changeset
• 🧪 Providing/Improving test coverage
• 🔐 Removing all sensitive information from the code and PR description
• 🚩 Using a feature flag to protect the release
• 👣 Providing comprehensive reproduction steps
• 📑 Providing or updating our documentation
• 🕛 Scheduling a pair reviewing session
• 📱 Providing mobile support
• ♿ Providing accessibility support

[github-actions]

Coverage Report: ✅
Base Coverage: 82.23%
Current Coverage: 82.23%

[mjac0bs]

Good catch, thank you. 🔍

Confirmed the new link doesn't 404. Also checked the rest of the links on the Contributing page to confirm no other links are broken.

[carrillo-erik]

LGTM! ✅