integration: remove use of golang.org/x/sys/execabs

This dependency was removed in 2af6db6, but
was re-introduced in commit 2fab240.

Now that golang.org/x/tools also stopped using this dependency, removing
this use will remove the package from our dependency tree.

Signed-off-by: Sebastiaan van Stijn <[email protected]>

Author: thaJeztah

integration/release_upgrade_utils_linux_test.go

@@ -21,13 +21,13 @@ import (
 	"context"
 	"fmt"
 	"net/http"
+	"os/exec"
 	"runtime"
 	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
 	"golang.org/x/mod/semver"
-	exec "golang.org/x/sys/execabs"
 
 	"github.com/containerd/containerd/v2/archive"
 	"github.com/containerd/containerd/v2/version"

vendor/golang.org/x/sys/execabs/execabs.go

@@ -499,7 +499,6 @@ golang.org/x/sync/semaphore
 # golang.org/x/sys v0.15.0
 ## explicit; go 1.18
 golang.org/x/sys/cpu
-golang.org/x/sys/execabs
 golang.org/x/sys/plan9
 golang.org/x/sys/unix
 golang.org/x/sys/windows