Its a known bug it seems after doing some research where secrets cannot be propagated by default if GitHub thinks they are secrets, following threads discuss the same:

https://github.com/orgs/community/discussions/37942

https://github.com/orgs/community/discussions/13082

An alternate way describer in a medium post that encodes and decodes to skip GitHub's auto filtering of secret set to output variables:

https://medium.com/@adel.muhandes/securely-passing-secrets-between-github-action-jobs-a-simple-guide-76ec9d838d0f