Access for @avivkeller to AIX machines

[avivkeller]

cc @richardlau

We (@nodejs/web-infra) have discovered that AIX machines are hanging on certain WASM, and I'd love to investigate further to provide a minimal repro?

[richardlau]

As @avivkeller is a Node.js collaborator he meets the criteria in

build/GOVERNANCE.md

Lines 218 to 219 in 0267c21

	Collaborators can be given access without further process using a
	temporary account on the specific machines.

@avivkeller we'll need a public ssh key for you to add to a machine so you can log into it (via ssh). Feel free to DM me in Slack or email (whatever you are comfortable with) and I'll get you set up (most likely tomorrow).