Bump importmap-rails from 2.2.2 to 2.2.3

Bumps [importmap-rails](https://github.com/rails/importmap-rails) from 2.2.2 to 2.2.3.
- [Release notes](https://github.com/rails/importmap-rails/releases)
- [Commits](rails/importmap-rails@v2.2.2...v2.2.3)

---
updated-dependencies:
- dependency-name: importmap-rails
  dependency-version: 2.2.3
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

Gemfile.lock

@@ -140,7 +140,7 @@ GEM
       rake (>= 13)
     i18n (1.14.8)
       concurrent-ruby (~> 1.0)
-    importmap-rails (2.2.2)
+    importmap-rails (2.2.3)
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
@@ -310,7 +310,7 @@ GEM
     stringio (3.2.0)
     test-unit (3.7.7)
       power_assert
-    thor (1.4.0)
+    thor (1.5.0)
     timeout (0.4.4)
     tsort (0.2.0)
     tzinfo (2.0.6)