Build(deps): Bump importmap-rails from 2.0.1 to 2.0.3

Bumps [importmap-rails](https://github.com/rails/importmap-rails) from 2.0.1 to 2.0.3.
- [Release notes](https://github.com/rails/importmap-rails/releases)
- [Commits](rails/importmap-rails@v2.0.1...v2.0.3)

---
updated-dependencies:
- dependency-name: importmap-rails
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Gemfile.lock

@@ -574,7 +574,7 @@ GEM
       rexml
     xpath (3.2.0)
       nokogiri (~> 1.8)
-    zeitwerk (2.6.18)
+    zeitwerk (2.7.0)
     zip_tricks (5.6.0)
 
 PLATFORMS