{CI} Add linux-arm runner (#179)

Summary:

Add a linux-arm to test codebase on more platforms

Reviewed By: PiotrBrzyski

Differential Revision: D68358360

Author: SeaOtocinclus

.github/workflows/build-and-test-pixi.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-13, macos-14, windows-2019] # macos-14 is macSilicon
+        os: [ubuntu-latest, 2-core-ubuntu-arm, macos-13, macos-14, windows-2019] # macos-14 is macSilicon
     steps:
       - name : Setup repo
         uses: actions/checkout@v4
@@ -43,7 +43,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, macos-13, macos-14, windows-2019] # macos-14 is macSilicon
+        os: [ubuntu-latest, 2-core-ubuntu-arm, macos-13, macos-14, windows-2019] # macos-14 is macSilicon
     steps:
       - name : Setup repo
         uses: actions/checkout@v4