Bump dartdoc to 6.0.1 (#3102)

Author: srawlins

CHANGELOG.md

@@ -1,3 +1,21 @@
+## 6.0.1
+
+* Allow `Parameter.enclosingElement` to be nullable.
+* Deprecate `PackageMeta.description`, `PackageMeta.repository`,
+  `PackageMeta.getLicenseContents`, `PackageMeta.getChangelogContents`.
+* Deprecate public access to `allBeforeFirstNewline`, `allAfterLastNewline`,
+  `findFreeHangingGenericsPositions`, `ReferenceChildrenLookup`, and
+  `childLookups`.
+* Make `Mixin.superclassConstraints`, `ModelElement.library` and `ModelElement. package` non-nullable late final.
+* Make `ModelElement.element` non-nullable.
+* Remove `ElementType.returnedFrom`, `MatchingLinkResult.warn`.
+* Rename `DartdocGeneratorBackend` to `GeneratorBackendBase`. Add a
+  typedef to preserve old behavior.
+* Make `ContainerMember.enclosingElement` a `Container`.
+* Deprecate MarkdownDocument's unnamed constructor.
+* Fix the search box's height constraint.
+* Move to analyzer ^4.3.1.
+
 ## 6.0.0
 
 * BREAKING CHANGE: Make `DartdocGeneratorBackend.sidebarForContainer`,

dartdoc_options.yaml

@@ -1,4 +1,4 @@
 dartdoc:
   linkToSource:
     root: '.'
-    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v6.0.0/%f%#L%l%'
+    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v6.0.1/%f%#L%l%'

lib/src/version.dart

@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '6.0.0';
+const packageVersion = '6.0.1';

pubspec.yaml

@@ -1,6 +1,6 @@
 name: dartdoc
 # Run `dart run grinder build` after updating.
-version: 6.0.0
+version: 6.0.1
 description: A non-interactive HTML documentation generator for Dart source code.
 repository: https://github.com/dart-lang/dartdoc