Bump middleman-syntax from 3.3.0 to 3.4.0

Bumps [middleman-syntax](https://github.com/middleman/middleman-syntax) from 3.3.0 to 3.4.0.
- [Changelog](https://github.com/middleman/middleman-syntax/blob/master/CHANGELOG.md)
- [Commits](middleman/middleman-syntax@v3.3.0...v3.4.0)

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

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

Gemfile.lock

@@ -1,29 +1,28 @@
 GEM
   remote: https://rubygems.org/
   specs:
-    activesupport (6.1.6.1)
+    activesupport (7.0.8)
       concurrent-ruby (~> 1.0, >= 1.0.2)
       i18n (>= 1.6, < 2)
       minitest (>= 5.1)
       tzinfo (~> 2.0)
-      zeitwerk (~> 2.3)
-    addressable (2.8.1)
+    addressable (2.8.6)
       public_suffix (>= 2.0.2, < 6.0)
     autoprefixer-rails (10.2.5.0)
       execjs (< 2.8.0)
-    backports (3.23.0)
+    backports (3.24.1)
     coffee-script (2.4.1)
       coffee-script-source
       execjs
     coffee-script-source (1.12.2)
-    concurrent-ruby (1.2.0)
-    contracts (0.16.1)
+    concurrent-ruby (1.2.3)
+    contracts (0.17)
     dotenv (2.8.1)
     erubis (2.7.0)
     execjs (2.7.0)
     fast_blank (1.0.1)
-    fastimage (2.2.6)
-    ffi (1.15.5)
+    fastimage (2.3.0)
+    ffi (1.16.3)
     haml (5.2.2)
       temple (>= 0.8.0)
       tilt
@@ -77,24 +76,24 @@ GEM
     middleman-sprockets (4.1.1)
       middleman-core (~> 4.0)
       sprockets (>= 3.0)
-    middleman-syntax (3.3.0)
+    middleman-syntax (3.4.0)
       middleman-core (>= 3.2)
       rouge (~> 3.2)
     mini_portile2 (2.8.0)
-    minitest (5.17.0)
+    minitest (5.22.1)
     nokogiri (1.13.9)
       mini_portile2 (~> 2.8.0)
       racc (~> 1.4)
-    padrino-helpers (0.15.2)
+    padrino-helpers (0.15.3)
       i18n (>= 0.6.7, < 2)
-      padrino-support (= 0.15.2)
+      padrino-support (= 0.15.3)
       tilt (>= 1.4.1, < 3)
-    padrino-support (0.15.2)
-    parallel (1.22.1)
+    padrino-support (0.15.3)
+    parallel (1.24.0)
     parslet (2.0.0)
-    public_suffix (5.0.1)
+    public_suffix (5.0.4)
     racc (1.6.0)
-    rack (2.2.6.2)
+    rack (2.2.8)
     rb-fsevent (0.11.2)
     rb-inotify (0.10.1)
       ffi (~> 1.0)
@@ -122,7 +121,6 @@ GEM
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     webrick (1.8.1)
-    zeitwerk (2.6.0)
 
 PLATFORMS
   ruby