ci(build): use qemu for i386

dev-libs/blake3 required by dev-util/ccache does not build on amd64
and produces asssmebler errors

Signed-off-by: Henning Schild <henning@hennsch.de>

.github/workflows/build.yml

@@ -35,7 +35,7 @@ jobs:
           } >> "$GITHUB_OUTPUT"
       - name: Set up QEMU
         uses: docker/setup-qemu-action@49b3bc8e6bdd4a60e6116a5414239cba5943d3cf # v3
-        if: matrix.arch != '386' && matrix.arch != 'amd64'
+        if: matrix.arch != 'amd64'
         with:
           platforms: ${{ steps.prep.outputs.qemu_platform }}
       - name: Set up buildx