Bump lookbook from 2.0.5 to 2.1.1 (#307)

Bumps [lookbook](https://github.com/ViewComponent/lookbook) from 2.0.5 to 2.1.1.
- [Release notes](https://github.com/ViewComponent/lookbook/releases)
- [Commits](lookbook-hq/lookbook@v2.0.5...v2.1.1)

---
updated-dependencies:
- dependency-name: lookbook
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Gemfile.lock

@@ -142,7 +142,7 @@ GEM
     crack (0.4.5)
       rexml
     crass (1.0.6)
-    css_parser (1.14.0)
+    css_parser (1.16.0)
       addressable
     cssbundling-rails (1.3.3)
       railties (>= 6.0.0)
@@ -260,7 +260,7 @@ GEM
     loofah (2.21.3)
       crass (~> 1.0.2)
       nokogiri (>= 1.12.0)
-    lookbook (2.0.5)
+    lookbook (2.1.1)
       activemodel
       css_parser
       htmlbeautifier (~> 1.3)