build(deps): bump tailwind_merge from 1.5.5 to 1.5.6 in /docs (#547)

Bumps [tailwind_merge](https://github.com/gjtorikian/tailwind_merge) from 1.5.5 to 1.5.6.
- [Release notes](https://github.com/gjtorikian/tailwind_merge/releases)
- [Changelog](https://github.com/gjtorikian/tailwind_merge/blob/main/CHANGELOG.md)
- [Commits](gjtorikian/tailwind_merge@v1.5.5...v1.5.6)

---
updated-dependencies:
- dependency-name: tailwind_merge
  dependency-version: 1.5.6
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

docs/Gemfile

@@ -77,7 +77,7 @@ gem "ruby_ui", path: "../gem", require: false
 
 gem "pry", "0.16.0"
 
-gem "tailwind_merge", "~> 1.5.5"
+gem "tailwind_merge", "~> 1.5.6"
 gem "rss", "0.3.3"
 
 gem "rouge", "~> 5.1"

docs/Gemfile.lock

@@ -321,7 +321,7 @@ GEM
     stimulus-rails (1.3.4)
       railties (>= 6.0.0)
     strscan (3.1.8)
-    tailwind_merge (1.5.5)
+    tailwind_merge (1.5.6)
       sin_lru_redux (~> 2.5)
     thor (1.5.0)
     timeout (0.6.1)
@@ -374,7 +374,7 @@ DEPENDENCIES
   sqlite3 (= 2.9.6)
   standard
   stimulus-rails (= 1.3.4)
-  tailwind_merge (~> 1.5.5)
+  tailwind_merge (~> 1.5.6)
   turbo-rails (= 2.0.23)
   tzinfo-data
   web-console