Add BuildJet ARM64 runners.

[JimBobSquarePants]

Prerequisites

• I have written a descriptive pull-request title
• I have verified that there are no overlapping pull-requests open
• I have verified that I am following the existing coding patterns and practice as demonstrated in the repository. These follow strict Stylecop rules 👮.
• I have provided test coverage for my change (where applicable)

Description

I've signed up for an ARM64 runner via BuildJet.

https://buildjet.com/for-github-actions/docs/runners#which-runner-should-i-use

Fingers crossed this works out-of-the-box as documentation is light.

[JimBobSquarePants]

@brianpopow got some failing stuff here. Seems System.Drawing related. Will need to make some additional changes. Anything obvious you can think of from your PR?

[brianpopow]

@brianpopow got some failing stuff here. Seems System.Drawing related. Will need to make some additional changes. Anything obvious you can think of from your PR?

mhm I first thought all the runner were green. It looks like libgdi+ dependency is missing. Should be easy to add, I will take a look.

[JimBobSquarePants]

@brianpopow I had to do a bit more work to get everything green. Everything checks out now though and I've manually verified all output.

Those previous green runs you approved existed because I chose the wrong runners. AMD instead of ARM! I should code less late at night! 🤪

[brianpopow]

@JimBobSquarePants I tried to run the tests on my ARM device and had BmpDecoder_CanDecode_Os2BitmapArray failing. Turns out the testfiles did have upper case file-endings. This was causing them not being treated as binary files from git-lfs. I am not sure why this only fails on my device, though. Fixed now with 3fd4fdc

[brianpopow]

I think this is ready now for merging, glad we can now finally test on ARM.