Bump pymongo from 4.0.1 to 4.6.3 in /test/test-app #2119

Job	Run time
action-context	1s
setup (operator)	3m 11s
setup (version-upgrade-hook)	2m 35s
setup (readiness-probe)	2m 27s
setup (agent)	2m 18s
setup (e2e)	2m 1s
tests (replica_set, ubi)	6m 7s
tests (replica_set_enterprise_upgrade_4_5, ubi)	17m 48s
tests (replica_set_enterprise_upgrade_5_6, ubi)	18m 19s
tests (replica_set_enterprise_upgrade_6_7, ubi)	18m 46s
tests (replica_set_recovery, ubi)	6m 56s
tests (replica_set_mongod_readiness, ubi)	14m 19s
tests (replica_set_scale, ubi)	8m 24s
tests (replica_set_scale_down, ubi)	9m 12s
tests (replica_set_change_version, ubi)	31m 5s
tests (feature_compatibility_version, ubi)	31m 52s
tests (prometheus, ubi)	8m 47s
tests (replica_set_tls, ubi)	7m 21s
tests (replica_set_tls_recreate_mdbc, ubi)	9m 28s
tests (replica_set_tls_rotate, ubi)	16m 17s
tests (replica_set_tls_rotate_delete_sts, ubi)	9m 21s
tests (replica_set_tls_upgrade, ubi)	9m 50s
tests (statefulset_arbitrary_config, ubi)	5m 8s
tests (statefulset_arbitrary_config_update, ubi)	8m 2s
tests (replica_set_mongod_config, ubi)	5m 36s
tests (replica_set_cross_namespace_deploy, ubi, true)	5m 46s
tests (replica_set_custom_role, ubi)	6m 14s
tests (replica_set_arbiter, ubi)	11m 8s
tests (replica_set_custom_persistent_volume, ubi)	6m 5s
tests (replica_set_mount_connection_string, ubi)	5m 59s
tests (replica_set_mongod_port_change_with_arbiters, ubi)	18m 6s
tests (replica_set_operator_upgrade, ubi)	9m 11s
tests (replica_set_connection_string_options, ubi)	7m 8s
tests (replica_set_x509, ubi)	14m 15s
	5h 39m 3s

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