Modify build workflow to handle race variant packaging

Updated packaging step to include version suffix for race detector builds.

.github/workflows/go-build.yml

@@ -26,6 +26,10 @@ jobs:
           - linux_arm64
           - linux_arm
           - linux_386
+        variant: [standard]
+        include:
+          - target: windows_amd64
+            variant: race
 
     steps:
       - uses: actions/checkout@v4
@@ -40,6 +44,13 @@ jobs:
           go-version-file: "go-legacy-win7/src/go.mod"
           cache: false
 
+      - name: Revert race detector patches
+        if: matrix.variant == 'race'
+        run: |
+          cd go-legacy-win7
+          git apply -R patches/0008-Replace-atomic-Or-with-compare-and-swap-loop.patch
+          git apply -R patches/0007-Drop-public-And-Or-ops-and-race-instrumentation.patch
+
       - name: Set execute permissions
         run: |
           chmod +x go-legacy-win7/src/make.bash
@@ -93,13 +104,22 @@ jobs:
           cd tool
           find . -mindepth 1 -maxdepth 1 -type d ! -name "${{ matrix.target }}" -exec rm -rf {} +
 
+      - name: Set version suffix
+        id: version
+        run: |
+          if [ "${{ matrix.variant }}" == "race" ]; then
+            echo "suffix=-race" >> $GITHUB_OUTPUT
+          else
+            echo "suffix=" >> $GITHUB_OUTPUT
+          fi
+
       - name: Package
         run: |
           cd release
           if [[ "${{ matrix.target }}" == windows_* ]]; then
-            zip -r ../go-legacy-win7-${{ inputs.version }}.${{ matrix.target }}.zip .
+            zip -r ../go-legacy-win7-${{ inputs.version }}${{ steps.version.outputs.suffix }}.${{ matrix.target }}.zip .
           else
-            tar -czf ../go-legacy-win7-${{ inputs.version }}.${{ matrix.target }}.tar.gz .
+            tar -czf ../go-legacy-win7-${{ inputs.version }}${{ steps.version.outputs.suffix }}.${{ matrix.target }}.tar.gz .
           fi
 
       - name: Create Release
@@ -125,5 +145,5 @@ jobs:
             --target main
 
           gh release upload v${{ inputs.version }} \
-            ../go-legacy-win7-${{ inputs.version }}.${{ matrix.target }}.* \
+            ../go-legacy-win7-${{ inputs.version }}${{ steps.version.outputs.suffix }}.${{ matrix.target }}.* \
             --clobber