test: stabilize cmd tests by centralizing InstallLock reset

After 07ada36, PrepareConsoleLoggerLevel can fail in tests when InstallLock is true.
This commit fixes cmd test setup by forcing InstallLock=false in shared test execution paths.

Changes:
- cmd/main_test.go: set InstallLock=false in runTestApp and remove redundant per-subtest InstallLock mock in TestCliCmd.
- cmd/config_test.go: set InstallLock=false in TestConfigEdit and add required imports.

Co-Authored-By: GitHub Copilot <copilot@github.com> (GPT-5.3-Codex)

Author: Morgan PEYRE

cmd/config_test.go

@@ -7,10 +7,14 @@ import (
 	"os"
 	"testing"
 
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/test"
+
 	"github.com/stretchr/testify/require"
 )
 
 func TestConfigEdit(t *testing.T) {
+	defer test.MockVariableValue(&setting.InstallLock, false)()
 	tmpDir := t.TempDir()
 	configOld := tmpDir + "/app-old.ini"
 	configTemplate := tmpDir + "/app-template.ini"

cmd/main_test.go

@@ -50,6 +50,7 @@ func runTestApp(app *cli.Command, args ...string) (runResult, error) {
 	app.Writer = outBuf
 	app.ErrWriter = errBuf
 	exitCode := -1
+	defer test.MockVariableValue(&setting.InstallLock, false)()
 	defer test.MockVariableValue(&cli.ErrWriter, app.ErrWriter)()
 	defer test.MockVariableValue(&cli.OsExiter, func(code int) {
 		if exitCode == -1 {
@@ -157,7 +158,6 @@ func TestCliCmd(t *testing.T) {
 
 	for _, c := range cases {
 		t.Run(c.cmd, func(t *testing.T) {
-			defer test.MockVariableValue(&setting.InstallLock, false)()
 			app := newTestApp(cli.Command{
 				Action: func(ctx context.Context, cmd *cli.Command) error {
 					_, _ = fmt.Fprint(cmd.Root().Writer, makePathOutput(setting.AppWorkPath, setting.CustomPath, setting.CustomConf))