Bump importmap-rails from 2.0.2 to 2.0.3

Bumps [importmap-rails](https://github.com/rails/importmap-rails) from 2.0.2 to 2.0.3.
- [Release notes](https://github.com/rails/importmap-rails/releases)
- [Commits](rails/importmap-rails@v2.0.2...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

@@ -168,7 +168,7 @@ GEM
       multi_xml (>= 0.5.2)
     i18n (1.14.6)
       concurrent-ruby (~> 1.0)
-    importmap-rails (2.0.2)
+    importmap-rails (2.0.3)
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
@@ -266,7 +266,7 @@ GEM
       stringio
     public_suffix (6.0.1)
     racc (1.8.1)
-    rack (3.1.7)
+    rack (3.1.8)
     rack-session (2.0.0)
       rack (>= 3.0.0)
     rack-test (2.1.0)
@@ -392,7 +392,7 @@ GEM
     xpath (3.2.0)
       nokogiri (~> 1.8)
     yard (0.9.36)
-    zeitwerk (2.6.18)
+    zeitwerk (2.7.0)
 
 PLATFORMS
   aarch64-linux