Bump importmap-rails from 51c1a53 to f255e55

Bumps [importmap-rails](https://github.com/rails/importmap-rails) from `51c1a53` to `f255e55`.
- [Release notes](https://github.com/rails/importmap-rails/releases)
- [Commits](https://github.com/rails/importmap-rails/compare/51c1a531327fc04ed4552bb0fd523eb43561b817...f255e55482d9173d8f64db3bfa4317b64445eeb4)

---
updated-dependencies:
- dependency-name: importmap-rails
  dependency-version: f255e55482d9173d8f64db3bfa4317b64445eeb4
  dependency-type: direct:production
...

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

Gemfile.lock

@@ -14,9 +14,9 @@ GIT
 
 GIT
   remote: https://github.com/rails/importmap-rails.git
-  revision: 51c1a531327fc04ed4552bb0fd523eb43561b817
+  revision: f255e55482d9173d8f64db3bfa4317b64445eeb4
   specs:
-    importmap-rails (2.2.2)
+    importmap-rails (2.2.3)
       actionpack (>= 6.0.0)
       activesupport (>= 6.0.0)
       railties (>= 6.0.0)
@@ -163,12 +163,12 @@ GEM
       xpath (~> 3.2)
     chunky_png (1.4.0)
     concurrent-ruby (1.3.8)
-    connection_pool (2.5.5)
+    connection_pool (3.0.2)
     crack (1.0.0)
       bigdecimal
       rexml
     crass (1.0.7)
-    date (3.5.1)
+    date (3.6.0)
     debug (1.11.0)
       irb (~> 1.10)
       reline (>= 0.3.8)
@@ -206,7 +206,7 @@ GEM
     jbuilder (2.14.1)
       actionview (>= 7.0.0)
       activesupport (>= 7.0.0)
-    json (2.21.2)
+    json (3.0.2)
     jwt (3.2.0)
       base64
     kredis (1.8.0)
@@ -270,7 +270,7 @@ GEM
       useragent (~> 0.16.3)
     pp (0.6.4)
       prettyprint
-    prettyprint (0.2.0)
+    prettyprint (0.2.1)
     prism (1.9.0)
     psych (5.5.0)
       date
@@ -410,7 +410,7 @@ GEM
     unicode-display_width (3.2.0)
       unicode-emoji (~> 4.1)
     unicode-emoji (4.2.0)
-    uri (1.1.1)
+    uri (1.1.2)
     useragent (0.16.11)
     web-push (3.1.0)
       jwt (~> 3.0)