Subkeys of FFY00 are expired
Please refer to ./keyringctl inspect FFY00:
The subkeys 4DCDA32508844AD9F676C671A6ED0DD7FDF6BB77, D235B495EAACDF78327ED8B0F893C674816AA95D and A5000D5367F8201AD1CF2A884DC2BA5BF4D2F804 of the packager key 3DCE51D60930EBA47858BA4146F633CBB0EB4BF2 have expired.
Please export your current up-to-date key (and subkeys!) and import it using keyringctl:
./keyringctl import <file>
Afterwards create a merge request with the changes, so that the keyring can be released.
Meanwhile, all packages currently still signed with A5000D5367F8201AD1CF2A884DC2BA5BF4D2F804 should be rebuilt by another key.