• Describe the issue
  We need to update the stable signing keys for aarch64/x86_64 for the IoT ostrees to be F-37.

We'll leave armhfp as F-36 given it's EOL in F-37 and we will do updates there until F-36 goes EOL.

• When do you need this? (YYYY/MM/DD)
  ASAP

• When is this no longer needed or useful? (YYYY/MM/DD)
  N/A

• If we cannot complete your request, what is the impact?
  No stable IoT for F-37