When a claim is set to observed, update all validator nonces if they have a lower last observed nonce.
NOTE: This only takes effect when a claim is successfully attested to. The validators currently stuck will remain on their current nonces until a claim is processed. To get them unstuck, we need https://github.com/VolumeFi/paloma/issues/2160
Testing completed
[ ] test coverage exists or has been added/updated
[x] tested in a private testnet
Breaking changes
[x] I have checked my code for breaking changes
[x] If there are breaking changes, there is a supporting migration.
Related Github tickets
Background
When a claim is set to observed, update all validator nonces if they have a lower last observed nonce.
NOTE: This only takes effect when a claim is successfully attested to. The validators currently stuck will remain on their current nonces until a claim is processed. To get them unstuck, we need https://github.com/VolumeFi/paloma/issues/2160
Testing completed
Breaking changes