Add support for codeql sweeps

[AM-K-19]

Add codeql.yml configuration file to allow routine static and vulnerability checks. By the way, codeql has detected one issue on the current head of master. I can provide additional details if required.

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[igaw]

Thanks! Let's see how this goes.

[igaw]

I see a warning reported:

Could not process some files due to syntax errors
[View file](https://github.com/linux-nvme/nvme-cli/blob/master//home/runner/work/nvme-cli/nvme-cli/subprojects/libnvme/libnvme/__init__.py#L1-L1)

A parse error occurred while processing /home/runner/work/nvme-cli/nvme-cli/subprojects/libnvme/libnvme/\_\_init\_\_.py, and as a result this file could not be analyzed. Check the syntax of the file using the python -m py\_compile command and correct any invalid syntax.

[igaw]

We should probably exclude the subprojects from the scan.

[AM-K-19]

We should probably exclude the subprojects from the scan.

Yes, that sounds sensible. Leave it with me. I'll try to figure out how to exclude such directories from the scan.

[AM-K-19]

I've created this new pull request:
#2115