Only run x86 build in github actions if x64 build succeeds

I rarely care about the status of the x86 builds, so this commit only
runs them if the x64 builds succeed. If the x64 build is successful but
the x86 build is not, the cache for the x64 build should kick in and the
x86 build should follow shortly after, if it's necessary to iterate on
it.

Updated the GitHub Actions workflow so x86 only runs after x64 succeeds.

Changed:

- Split the old matrix job into two explicit jobs: build-x64 and build-x86.
- Added needs: build-x64 on the x86 job, which enforces the dependency.

.github/workflows/build.yml

@@ -15,16 +15,11 @@ permissions:
   contents: write
 
 jobs:
-  build:
+  build-x64:
     runs-on: ubuntu-latest
     if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
     env:
-      FORCE_JAVASCRIPT_ACTIONS_TO_NODE24: true
-
-    strategy:
-      fail-fast: false
-      matrix:
-        arch: ["x64", "x86"]
+      ARCH: x64
 
     steps:
       - uses: actions/checkout@v6
@@ -32,14 +27,8 @@ jobs:
       - name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v4
 
-      - name: Apply x86 patch
-        if: matrix.arch == 'x86'
-        run: patch -p1 -i src/variant-x86.patch
-
       - name: Generate archive name and version string
         id: filename
-        env:
-          ARCH: ${{ matrix.arch }}
         run: |
           GIT_VERSION="$(git describe --tags --always)"
           echo "version=${GIT_VERSION:1}" >> $GITHUB_OUTPUT
@@ -49,14 +38,70 @@ jobs:
         uses: docker/build-push-action@v7
         with:
           context: .
-          tags: w64devkit:${{ matrix.arch }}
+          tags: w64devkit:${{ env.ARCH }}
           load: true
-          cache-from: type=gha,scope=w64devkit-${{ matrix.arch }}
-          cache-to: type=gha,scope=w64devkit-${{ matrix.arch }},mode=max
+          cache-from: type=gha,scope=w64devkit-${{ env.ARCH }}
+          cache-to: type=gha,scope=w64devkit-${{ env.ARCH }},mode=max
 
       - name: Extract artifact
         run: |
-          docker run --rm w64devkit:${{ matrix.arch }} > w64devkit.exe
+          docker run --rm w64devkit:${{ env.ARCH }} > w64devkit.exe
+
+      - name: Rename artifact
+        run: |
+          mv w64devkit.exe ${{ steps.filename.outputs.archive }}.exe
+          ls -lh ${{ steps.filename.outputs.archive }}.exe
+
+      - name: Upload artifact
+        uses: actions/upload-artifact@v7
+        with:
+          name: ${{ steps.filename.outputs.archive }}.exe
+          path: ${{ steps.filename.outputs.archive }}.exe
+          archive: false
+
+      - name: Create Release
+        if: startsWith(github.ref, 'refs/tags/')
+        uses: softprops/action-gh-release@v2
+        with:
+          name: ${{ steps.filename.outputs.version }}
+          files: w64devkit-*.exe
+          draft: true
+
+  build-x86:
+    runs-on: ubuntu-latest
+    needs: build-x64
+    if: github.event_name == 'push' || github.event.pull_request.head.repo.full_name != github.repository
+    env:
+      ARCH: x86
+
+    steps:
+      - uses: actions/checkout@v6
+
+      - name: Set up Docker Buildx
+        uses: docker/setup-buildx-action@v4
+
+      - name: Apply x86 patch
+        run: patch -p1 -i src/variant-x86.patch
+
+      - name: Generate archive name and version string
+        id: filename
+        run: |
+          GIT_VERSION="$(git describe --tags --always)"
+          echo "version=${GIT_VERSION:1}" >> $GITHUB_OUTPUT
+          echo "archive=w64devkit-$ARCH-${GIT_VERSION:1}" >> $GITHUB_OUTPUT
+
+      - name: Build image
+        uses: docker/build-push-action@v7
+        with:
+          context: .
+          tags: w64devkit:${{ env.ARCH }}
+          load: true
+          cache-from: type=gha,scope=w64devkit-${{ env.ARCH }}
+          cache-to: type=gha,scope=w64devkit-${{ env.ARCH }},mode=max
+
+      - name: Extract artifact
+        run: |
+          docker run --rm w64devkit:${{ env.ARCH }} > w64devkit.exe
 
       - name: Rename artifact
         run: |