iroh: Add version 0.21.0

[xialvjun]

Another tool created by IPFS team

Closes #XXXX

Relates to #XXXX

• [ ] I have read the Contributing Guide.

[github-actions[bot]]

Your changes do not pass checks.

iroh

• [x] Description
• [x] License
• [x] Hashes
• [ ] Checkver
• [x] Autoupdate

[pratikpc]

@xialvjun the 0.13.0 has not been marked as latest by the iroh team

That's why Checkver failed.

You will have to switch to 0.12 probably.

[pratikpc]

Should probably work now

/verify

[aliesbelik]

/verify

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

iroh

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate

[niheaven]

/verify

[github-actions[bot]]

All changes look good.

Wait for review from human collaborators.

iroh

• [x] Description
• [x] License
• [x] Hashes
• [x] Checkver
• [x] Autoupdate