The repository edk2 cannot be fetch [1] because 'is not trusted'. stdio: ERROR: ovmf-native-edk2-stable202105-r0 do_fetch: The URL: 'gitsm://github.com/tianocore/edk2.git;branch=master;protocol=https' is not trusted and cannot be used [1] https://autobuilder.yoctoproject.org/typhoon/#/builders/83/builds/2321/steps/23/logs/errors
May have been due to your bitbake fetcher changes according to Richard.
My SSL fetcher changes were limited to wget.
I think this was related to upgrades and the mirrors not being up to date.