refactor: simplify test setup and improve SSH compatibility

- Remove unused import of strconv
- Remove environment variables PUID and PGID from the test container setup
- Enable UseInsecureCipher in SSH options for compatibility

Signed-off-by: appleboy <appleboy.tw@gmail.com>

plugin_test.go

@@ -7,7 +7,6 @@ import (
 	"io"
 	"os"
 	"reflect"
-	"strconv"
 	"strings"
 	"testing"
 	"time"
@@ -978,8 +977,6 @@ func TestSSHWithTestcontainers(t *testing.T) {
 		Image:        "linuxserver/openssh-server:latest",
 		ExposedPorts: []string{"2222/tcp"}, // Default port for this image is 2222
 		Env: map[string]string{
-			"PUID":            strconv.Itoa(os.Getuid()), // Use current user's UID
-			"PGID":            strconv.Itoa(os.Getgid()), // Use current user's GID
 			"USER_NAME":       "testuser",
 			"USER_PASSWORD":   "testpass",
 			"PASSWORD_ACCESS": "true",  // Enable password authentication
@@ -1021,12 +1018,13 @@ func TestSSHWithTestcontainers(t *testing.T) {
 
 	plugin := Plugin{
 		Config: Config{
-			Host:           []string{host},
-			Username:       "testuser", // Use the configured username
-			Port:           port.Int(), // Use the mapped port
-			Password:       "testpass", // Use the configured password
-			Script:         []string{"whoami"},
-			CommandTimeout: 60 * time.Second,
+			Host:              []string{host},
+			Username:          "testuser", // Use the configured username
+			Port:              port.Int(), // Use the mapped port
+			Password:          "testpass", // Use the configured password
+			Script:            []string{"whoami"},
+			CommandTimeout:    60 * time.Second,
+			UseInsecureCipher: true, // Allow insecure ciphers for compatibility
 		},
 		Writer: &buffer,
 	}