chore: use slices from standard library.

pkg/prebuild/builder/complain.go

@@ -6,10 +6,10 @@ package builder
 
 import (
 	"regexp"
+	"slices"
 	"strings"
 
 	"github.com/roddhjav/apparmor.d/pkg/prebuild/cfg"
-	"golang.org/x/exp/slices"
 )
 
 var (

pkg/prebuild/builder/core_test.go

@@ -5,9 +5,8 @@
 package builder
 
 import (
+	"slices"
 	"testing"
-
-	"golang.org/x/exp/slices"
 )
 
 func TestBuilder_Apply(t *testing.T) {

pkg/prebuild/builder/enforce.go

@@ -5,10 +5,10 @@
 package builder
 
 import (
+	"slices"
 	"strings"
 
 	"github.com/roddhjav/apparmor.d/pkg/prebuild/cfg"
-	"golang.org/x/exp/slices"
 )
 
 type Enforce struct {