Add temporary directory for Raft in Test_pluginScaffoldCmd

- Introduced a temporary directory for Raft using t.TempDir() in the Test_pluginScaffoldCmd test case.
- Set the GATEWAYD_RAFT_DIRECTORY environment variable to the new temporary directory.
- This change ensures that Raft operations during testing are isolated and do not interfere with other tests or system directories.

cmd/plugin_scaffold_test.go

@@ -28,6 +28,9 @@ func Test_pluginScaffoldCmd(t *testing.T) {
 	postgresAddress2 := postgresHostIP2 + ":" + postgresMappedPort2.Port()
 	t.Setenv("GATEWAYD_CLIENTS_TEST_WRITE_ADDRESS", postgresAddress2)
 
+	raftTempDir := t.TempDir()
+	t.Setenv("GATEWAYD_RAFT_DIRECTORY", raftTempDir)
+
 	globalTestConfigFile := filepath.Join("testdata", "gatewayd.yaml")
 	plugin.IsPluginTemplateEmbedded()
 	pluginTestScaffoldInputFile := "./testdata/scaffold_input.yaml"