Bump analyzer from 6.11.0 to 7.3.0 (#2532)

Bumps [analyzer](https://github.com/dart-lang/sdk/tree/main/pkg) from 6.11.0 to 7.3.0.
- [Changelog](https://github.com/dart-lang/sdk/blob/main/CHANGELOG.md)
- [Commits](https://github.com/dart-lang/sdk/commits/HEAD/pkg)

---
updated-dependencies:
- dependency-name: analyzer
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

pubspec.yaml

@@ -38,7 +38,7 @@ dependencies:
   watcher: ^1.0.0
 
 dev_dependencies:
-  analyzer: ^6.8.0
+  analyzer: ">=6.8.0 <8.0.0"
   archive: ^3.1.2
   crypto: ^3.0.0
   dartdoc: ^8.0.14