azure: add 'tags' argument to provision_instance

[phi-line]

I found this issue after seeing the latest integration test fail on GH actions:
https://github.com/skyplane-project/skyplane/actions/runs/3293577856

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Also adds autoflake to poetry dev deps

[parasj]

@phi-line This is fantastic, thanks for submitting this! This does seem to fix the integration test. I can't get Github Actions to pass so I'm investigating ways to support this. Once tests pass, this should be good to merge.

[parasj]

@phi-line Thanks for the patience. I got it so I can trigger cloud unit tests against forks. Apologies for any spam on your branch. Feel free to merge when ready.

[phi-line]

@parasj thanks for fixing the issue with GH actions when triggered by forks. I noticed that we are using merge commits to update the branches to HEAD at main. It might leave a cleaner history to rebase these changes instead. Otherwise, we get a lot of messages like these:

Edit: I removed the merge commits and rebased latest from main

Feel free to merge when ready

I'm ready to merge but I do not have permissions. "Only those with write access to this repository can merge pull requests."

[parasj]

@phi-line Thanks, we squash and merge so maintaining clean history is usually not needed. This preserves linear history with original branch state in the PR. I just merged it, good to know that others cannot usually merge.

Thank you for your first contribution!