ci: Build for Windows ARM

Create a release build for Windows ARM. We still will need to make changes to actually distribute this through all channels (e.g. through `npm` and possibly the install shell script).

Ref #1426

Author: szokeasaurusrex

.github/workflows/build.yml

@@ -170,7 +170,7 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-        arch: [i686, x86_64]
+        arch: [i686, x86_64, aarch64]
 
     env:
       TARGET: ${{ matrix.arch }}-pc-windows-msvc