[test] Now git diff in basic regression tests should capture the changes on golden outputs

[tangxifan]

Motivate of the pull request

• To address an existing issue. If so, please provide a link to the issue:
• Breaking new feature. If so, please describe details in the description part.

Describe the technical details

What is currently done? (Provide issue link if applicable)

What does this pull request change?

This PR improves in the following aspects:

• Fixed the bug in the io_center test cases. No more I/Os on the corners of center fabric.
• Fixed the bug in the git diff which failed to capture golden output changes

Which part of the code base require a change

• VPR
• Tileable routing architecture generator
• OpenFPGA libraries
• FPGA-Verilog
• FPGA-Bitstream
• FPGA-SDC
• FPGA-SPICE
• Flow scripts
• Architecture library
• Cell library
• Documentation
• Regression tests
• Continous Integration (CI) scripts

Impact of the pull request

• Require a change on Quality of Results (QoR)
• Break back-compatibility. If so, please list who may be influenced.

[tangxifan]

Waive the error in basic regression tests, as the golden netlists are not sync-up when building the docker image.

OpenFPGA/.github/workflows/build.yml

Lines 310 to 315 in 30988d7

	run: |
	bash .github/workflows/install_dependencies_run.sh
	${PYTHON_EXEC} -m pip install -r requirements.txt
	rsync -am --exclude='openfpga_flow/**' /opt/openfpga/. .
	unset OPENFPGA_PATH
	source openfpga.sh && source openfpga_flow/regression_test_scripts/${{matrix.config.name}}.sh --debug --show_thread_logs