Update GitHub CLI GPG key

[williammartin]

Description

I believe this updates the GPG key used for the GitHub CLI package repository with the new key as described in cli/cli#9569. I'm afraid I don't know how to test this change because I'm not familiar with the project. I'm just trying to be proactive in getting this fixed, many apologies from the GitHub CLI team 🙏

GitHub issue reference: #7186
Jira reference number AR-2483

Documentation summary for feature / change

How Has This Been Tested?

I have not really run any tests. I don't know how to validate this.

I downloaded the file from this PR and imported into my keychain to verify it was the correct key:

➜  ~ gpg --import githubcli.gpg
gpg: key 23F3D4EA75716059: public key "GitHub CLI <opensource+cli@github.com>" imported
gpg: Total number processed: 1
gpg:               imported: 1
➜  ~ gpg --list-keys
[keyboxd]
---------
pub   rsa4096 2022-09-06 [SC] [expires: 2026-09-05]
      2C6106201985B60E6C7AC87323F3D4EA75716059
uid           [ unknown] GitHub CLI <opensource+cli@github.com>
sub   rsa4096 2022-09-06 [E] [expires: 2026-09-05]

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• My changes generate no new warnings
• Any dependent changes have been merged and published in downstream modules

[williammartin]

Ah, looks like a 5 minute late duplicate of #7191, closing this!

[igorpecovnik]

Keep this PR. I have too many commits ;)