updating docker deploy base gcc install to version 8 to avoid possible python...

updating docker deploy base gcc install to version 8 to avoid possible python heterogeneous map std::any bug

Signed-off-by: Alex McCaskey <mccaskeyaj@ornl.gov>
4 jobs for master in 67 minutes and 32 seconds (queued for 2 seconds)
Status Name Job ID Coverage
  Deploy
passed docker run_docker_deploy #610989

00:14:27

passed docker run_docker_xacc_qcs_deploy #610991

00:18:39

passed docker run_docker_xacc_quac_deploy #611182

00:34:25

failed docker run_docker_xacc_quac_deploy #610990

00:18:22