feat: GHA updates

[jerzyjamroz]

Updates:

• added permissions to .yml files
• codeql for the module and kmod
• check-editorconfig.yml

@mdavidsaver , I realised that the kmod in linux directory was not updated so i did it. But a question appears, where it is used? It looks like mrfioc2 repeats some code in its kmod? What is the purpose of this pci_generic_msi.c?

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[AppVeyorBot]

❌ Build devlib2 1.0.43 failed (commit 452f62b77b by @jerzyjamroz)

[anjohnson]

There were no GHA builds of this PR on Windows, and the 4 Appveyor builds that ran all failed. If devlib2 isn't intended to be used on Windows (which seems likely) please remove the .appveyor.yml file so it won't run there (I hope that's how to do that). If it is supposed to be compatible there is still some work to do.

[jerzyjamroz]

@anjohnson, as we discussed in epics-modules/devlib2#22, the plan was to address non-working parts in separate PRs (one per issue).
How to handle .appveyor.yml is up to @mdavidsaver.
The goal of this PR was to improve GHA and code quality, without introducing changes.

[jerzyjamroz]

@anjohnson , @mdavidsaver , my optional proposal is here: #24. I tried something with appveyor but it is mega slow.