Fixes#10093.
This commit removes some old signing keys that haven't been used to sign
in a while and have either expired or been revoked.
=== scripts/keys/arshbot.asc ===
KeyID: 90E00CCB1C74C611 Created: 2018-08-08 Expires: 2022-08-08 Revoked: NO
=== scripts/keys/Crypt-iQ.asc ===
KeyID: 118759E83439A9B1 Created: 2019-05-31 Expires: 2022-10-13 Revoked: NO
https://github.com/lightningdevkit/rust-lightning/pull/2029