fix(TxtFileLineLengthSniff): Allow markdown headings, URLs, tables to exceed 80 character line limit (#2860121)

feat(ExpectedExceptionSniff): Add sniff to forbid usage of PHPUnit @expectedException annotation (#2859286)

feat(DisallowLongArraySyntaxSniff): Enable sniff to only allow short array syntax for Drupal 8 code (#2857830)

fix(NamespacedDependencySniff): Move sniff to DrupalPractice standard because it has false positives with custom modules (#2854781)

fix(FileCommentSniff): Do not require @file doc block if there is only one class in a file (#2853681)

fix(TxtFileLineLengthSniff): Allow lines without spaces (e.g. URLs) to be longer than 80 characters (#2855058)