fix: qemu: always use runtime.GOARCH for CNI bundle

The CNI is executed on the host. Even if we want to run an arm64 qemu,
we still need to execute the amd64 CNI on the host.

Signed-off-by: Florian Klink <flokli@flokli.de>
Signed-off-by: Andrey Smirnov <andrey.smirnov@talos-systems.com>

Author: flokli

pkg/provision/providers/qemu/preflight.go

@@ -9,6 +9,7 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"runtime"
 	"strings"
 
 	"github.com/coreos/go-iptables/iptables"
@@ -164,8 +165,9 @@ func (check *preflightCheckContext) cniBundle(ctx context.Context) error {
 	}
 
 	client := getter.Client{
-		Ctx:  ctx,
-		Src:  strings.ReplaceAll(check.request.Network.CNI.BundleURL, constants.ArchVariable, check.options.TargetArch),
+		Ctx: ctx,
+		// Network CNI runs on the host
+		Src:  strings.ReplaceAll(check.request.Network.CNI.BundleURL, constants.ArchVariable, runtime.GOARCH),
 		Dst:  check.request.Network.CNI.BinPath[0],
 		Pwd:  pwd,
 		Mode: getter.ClientModeDir,