Combine Django bump with other fixes to github checks (#16015)

* Add no cov on fail flag to fix CI

* Bump django to 4.2.21

* Coverage args

* Try cov equals awx

* Run migration test in parallel

* Ignore error and clean up commands

* Try to make schema check not hang

---------

Co-authored-by: Satoe Imaishi <simaishi@redhat.com>

tools/docker-compose/start_tests.sh

@@ -1,12 +1,12 @@
 #!/bin/bash
-set +x
+set -euo pipefail
 
 cd /awx_devel
 make clean
 make awx-link
 
-if [[ ! $@ ]]; then
+if [[ $# -eq 0 ]]; then
     make test
 else
-    make $@
+    make "$@"
 fi