Update CI for outdated actions, build issues, add macos-14, remove mingw32

[jhmgoossens]

These changes perform general maintenance on the GitHub Actions workflows for builds for Linux and Windows.
Notably:

• Update outdated build actions (e.g. checkout@v2 -> checkout@v4, etc.)
• Always upload artifact
• Windows: Remove mingw32 builds (32-bit is being removed)
• Linux: Update to recent Ubuntu
• Linux: Update to macos 13 and 14 arm64, and fix gcc build issues
• Linux: Use latest package name generation for macos
• Note: Without Windows MSVS steps

See also coin-or/COIN-OR-OptimizationSuite#25

[jhmgoossens]

Windows checks run OK, Linux checks fail for Ubuntu 22.04 for "build_static == true" (Building DyLP unit test fails), but OK for "build_static == false" (Build step is cancelled, but after DyLP unit tests pass). Any ideas?

[tkralphs]

I'm not sure what's going on here, but it appears there is no successful previous build that has ever run in Actions. It's probably not due to this update. But I guess I'll leave it to @LouHafer to sort out :).

[LouHafer]

No idea of the problem, but I'll make some time to look at it in the next few weeks. Busy with some non-code projects at the moment.