clean-up and re-activated PARALLEL mode in MegaLinter config file

.mega-linter.yml

@@ -1,3 +1,4 @@
+---
 PRINT_ALPACA: false
 SHOW_ELAPSED_TIME: true
 EXCLUDED_DIRECTORIES: [".git", ".changes"]
@@ -29,8 +30,6 @@ YAML_PRETTIER_FILTER_REGEX_EXCLUDE: "(\\.github|\\.changie\\.yaml)" # As it cann
 YAML_YAMLLINT_FILTER_REGEX_EXCLUDE: "(\\.github)" # As it cannot be added in .gitignore for ML actionlint linter
 CONFIG_REPORTER: false
 UPDATED_SOURCES_REPORTER: false
-#TEXT_REPORTER: true # cannot be set to true, and should use default value (true), otherwise TAP REPORTER is also generated. See https://github.com/nvuillam/mega-linter/issues/744
 CONSOLE_REPORTER: true
 LOG_LEVEL: INFO
 PRINT_ALL_FILES: false
-PARALLEL: false  # to avoid issue with MegaLinter v6.20.0 (see https://github.com/oxsecurity/megalinter/issues/2425)