Update requirements_git.txt to use new format

requirements/requirements_git.txt

@@ -1,5 +1,5 @@
-git+https://github.com/ansible/system-certifi.git@devel#egg=certifi
-git+https://github.com/ansible/ansible-runner.git@devel#egg=ansible-runner
+certifi @ git+https://github.com/ansible/system-certifi.git@devel#egg=certifi
+ansible-runner @ git+https://github.com/ansible/ansible-runner.git@devel#egg=ansible-runner
 awx-plugins-core @ git+https://github.com/ansible/awx-plugins.git@devel#egg=awx-plugins-core[credentials-github-app]
 django-ansible-base @ git+https://github.com/ansible/django-ansible-base@devel#egg=django-ansible-base[rest-filters,jwt_consumer,resource-registry,rbac,feature-flags]
 awx_plugins.interfaces @ git+https://github.com/ansible/awx_plugins.interfaces.git