Omit -gnu suffix

.github/workflows/gem.yml

@@ -14,11 +14,11 @@ jobs:
     strategy:
       matrix:
         platform:
-          - "aarch64-linux-gnu"
+          - "aarch64-linux"
           - "aarch64-linux-musl"
           - "arm64-darwin"
           - "x86_64-darwin"
-          - "x86_64-linux-gnu"
+          - "x86_64-linux"
           - "x86_64-linux-musl"
           - "x64-mingw32"
           - "x64-mingw-ucrt"
@@ -34,14 +34,10 @@ jobs:
           cargo-cache: true
           cargo-vendor: true
 
-      - name: Transform platform name
-        id: transform_platform
-        run: echo "cross_gem_platform=$(echo '${{ matrix.platform }}' | sed 's/-gnu$//')" >> $GITHUB_ENV
-
       - uses: oxidize-rb/actions/cross-gem@v1
         id: cross-gem
         with:
-          platform: ${{ env.cross_gem_action_platform }}
+          platform: ${{ matrix.platform }}
           ruby-versions: '3.1,3.2,3.3,3.4'
 
       - name: Display structure of built gems