[chore] Add Windows arm64 to support tier 3

[pjanotti]

Windows core and contrib are being built and tested on Windows ARM since September 2025, it should have at least the same level of support as Windows 386. The executables are being added to the releases via open-telemetry/opentelemetry-collector-releases#1383

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 91.82%. Comparing base (95aacc1) to head (ca9a1a4).

Additional details and impacted files

@@            Coverage Diff             @@
##             main   #14627      +/-   ##
==========================================
- Coverage   91.83%   91.82%   -0.01%     
==========================================
  Files         679      679              
  Lines       42921    42921              
==========================================
- Hits        39415    39412       -3     
- Misses       2438     2440       +2     
- Partials     1068     1069       +1     

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