remove workflow_run trigger in quic workflows

remove workflow_run trigger in quic workflows

workflow_run runs in the context of the target
repository rather than the fork repository, while
also being typically triggerable by the latter.
This can lead to attacker controlled code execution
or unexpected action runs with context controlled
by a malicious fork.

https://docs.zizmor.sh/audits/#dangerous-triggers

Reviewed-by: Neil Horman <nhorman@openssl.org>
Reviewed-by: Tomas Mraz <tomas@openssl.org>
(Merged from https://github.com/openssl/openssl/pull/28982)