GHA: tune timeouts for VM jobs
GHA: tune timeouts for VM jobs

The fedora job usually completes within 15-16 minutes,
and the centos-7 one needs 7-8 minutes.

Set the timeouts to twice those values.

Signed-off-by: Kir Kolyshkin <3a017b8ddb3f9cf3e4a59978b004111bdeb97f08@gmail.com>

rhatdan/runc,estesp/runc,estesp/runc,rhatdan/runc,dqminh/runc,kolyshkin/runc,kolyshkin/runc,dqminh/runc,kolyshkin/runc,estesp/runc,kolyshkin/runc,rhatdan/runc,dqminh/runc,rhatdan/runc,opencontainers/runc,opencontainers/runc,opencontainers/runc,dqminh/runc,opencontainers/runc