Bump importmap-rails from 1.1.5 to 1.1.6

Bumps [importmap-rails](https://github.com/rails/importmap-rails) from 1.1.5 to 1.1.6.
- [Release notes](https://github.com/rails/importmap-rails/releases)
- [Commits](rails/importmap-rails@v1.1.5...v1.1.6)

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

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

Author: dependabot[bot]

Gemfile.lock

@@ -243,7 +243,7 @@ GEM
     image_processing (1.12.2)
       mini_magick (>= 4.9.5, < 5)
       ruby-vips (>= 2.0.17, < 3)
-    importmap-rails (1.1.5)
+    importmap-rails (1.1.6)
       actionpack (>= 6.0.0)
       railties (>= 6.0.0)
     jbuilder (2.11.5)