backend: blif checker fixes

[serge-dsa]

Motivate of the pull request

• [X ] To address an existing issue. If so, please add GH or Jira ID here: EDA-3235
• Breaking new feature. If so, please describe details in the description part.

Which submodule does this change impact ?

• [X ] Backend
• FOEDAG_rs
• IP_Catalog
• Raptor_Tools
• yosys_verific_rs
• zephyr-rapidsi-dev
• Github CI

What does this pull request change?

EDA-3235

Verified that the following tests passed locally before PR was created.

• [ X] make tests/batch_all
• [ X] RunGJC.tcl
• Describe or list testcases run specifically to verify these updates if not covered above.

Impact of the pull request

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

[serge-dsa]

@ravikiranchollangi @NadeemYaseen
CentOS failed action:
File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 429, in _request
raise error
lazr.restfulclient.errors.ServerError: HTTP Error 500: Internal Server Error

[ravikiranchollangi]

@ravikiranchollangi @NadeemYaseen CentOS failed action: File "/usr/lib/python3/dist-packages/lazr/restfulclient/_browser.py", line 429, in _request raise error lazr.restfulclient.errors.ServerError: HTTP Error 500: Internal Server Error

Yes, I will re-run when others pass. It's CI resource issue.