Tacker CI jobs have been failing due to multiple issues:
1. DevStack builds failed with Neutron logger errors and setuptools
incompatibility when Global_Venv=False.
2. python-tackerclient was always installed from PyPI instead of Git
due to missing installation function in Tacker's DevStack plugin.
3. Stricter relationship validation in tosca-parser v2.13.0 caused
template validation errors.
This patch updates sample test data for Tosca-parser validation,
enables Git installation for python-tackerclient, and adjusts job
configurations (Neutron driver and Global_Venv) to resolve Neutron
and setuptools related errors.
Closes-Bug: https://bugs.launchpad.net/tacker/+bug/2118586
Closes-Bug: https://bugs.launchpad.net/tacker/+bug/2119435
Closes-Bug: https://bugs.launchpad.net/tacker/+bug/2119433
Change-Id: If9bb32267c3006bfda53053a5a2b4d59e62e1c2b
Signed-off-by: Shivam Shukla <shivam.shukla3@india.nec.com>