replace io/ioutil

fixes golangci-lint errors

api/mirror.go

@@ -2,7 +2,6 @@ package api
 
 import (
 	"fmt"
-	"io/ioutil"
 	"net/http"
 	"os"
 	"sort"
@@ -488,7 +487,7 @@ func apiMirrorsUpdate(c *gin.Context) {
 							task.TempDownPath, e = pp.GenerateTempPath(task.File.Filename)
 						} else {
 							var file *os.File
-							file, e = ioutil.TempFile("", task.File.Filename)
+							file, e = os.CreateTemp("", task.File.Filename)
 							if e == nil {
 								task.TempDownPath = file.Name()
 								file.Close()

azure/package_pool.go

@@ -2,7 +2,6 @@ package azure
 
 import (
 	"context"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 
@@ -105,7 +104,7 @@ func (pool *PackagePool) Size(path string) (int64, error) {
 func (pool *PackagePool) Open(path string) (aptly.ReadSeekerCloser, error) {
 	blob := pool.az.blobURL(path)
 
-	temp, err := ioutil.TempFile("", "blob-download")
+	temp, err := os.CreateTemp("", "blob-download")
 	if err != nil {
 		return nil, errors.Wrap(err, "error creating temporary file for blob download")
 	}

cmd/mirror_update.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"fmt"
-	"io/ioutil"
 	"os"
 	"strings"
 	"sync"
@@ -167,7 +166,7 @@ func aptlyMirrorUpdate(cmd *commander.Command, args []string) error {
 						task.TempDownPath, e = pp.GenerateTempPath(task.File.Filename)
 					} else {
 						var file *os.File
-						file, e = ioutil.TempFile("", task.File.Filename)
+						file, e = os.CreateTemp("", task.File.Filename)
 						if e == nil {
 							task.TempDownPath = file.Name()
 							file.Close()