Fix Performance/RegexpMatch offenses

config/initializers/wikicloth_redos_patch.rb

...llers/concerns/audit_events/enforces_valid_date_params.rb

...anzai/filter/references/vulnerability_reference_filter.rb

ee/lib/gitlab/llm/chain/utils/text_processing.rb

ee/lib/gitlab/middleware/ip_restrictor.rb

ee/spec/spec_helper.rb

lib/api/helpers.rb

lib/api/helpers/common_helpers.rb

lib/api/validations/validators/bulk_imports.rb

lib/banzai/color_parser.rb

lib/banzai/filter/ascii_doc_sanitization_filter.rb

lib/banzai/filter/references/abstract_reference_filter.rb

lib/banzai/filter/references/reference_filter.rb

lib/bulk_imports/path_normalization.rb

lib/feature/definition.rb

lib/tasks/gitlab/update_templates.rake

lib/uploaded_file.rb

qa/qa/flow/integrations/slack.rb

qa/qa/git/location.rb

qa/qa/resource/api_fabricator.rb