ci: add arm architecture for Raspberry Pi support

Author: 0xtbug

.github/workflows/build.yml

@@ -12,11 +12,14 @@ jobs:
     strategy:
       matrix:
         goos: [linux, windows, darwin]
-        goarch: [amd64, arm64]
-        # Ignore unsupported combinations if any, but these are generally fine.
+        goarch: [amd64, arm64, arm]
         exclude:
           - goos: windows
             goarch: arm64
+          - goos: windows
+            goarch: arm
+          - goos: darwin
+            goarch: arm
     steps:
       - name: Checkout Code
         uses: actions/checkout@v4