Bump middleman from 4.4.3 to 4.5.1

Bumps [middleman](https://github.com/middleman/middleman) from 4.4.3 to 4.5.1.
- [Changelog](https://github.com/middleman/middleman/blob/main/CHANGELOG.md)
- [Commits](https://github.com/middleman/middleman/commits)

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

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

Gemfile.lock

@@ -1,31 +1,31 @@
 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)
+    concurrent-ruby (1.2.3)
     contracts (0.16.1)
     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)
-    haml (5.2.2)
-      temple (>= 0.8.0)
+    fastimage (2.3.0)
+    ffi (1.16.3)
+    haml (6.3.0)
+      temple (>= 0.8.2)
+      thor
       tilt
     hamster (3.0.0)
       concurrent-ruby (~> 1.0)
@@ -38,23 +38,23 @@ GEM
       rb-fsevent (~> 0.10, >= 0.10.3)
       rb-inotify (~> 0.9, >= 0.9.10)
     memoist (0.16.2)
-    middleman (4.4.3)
+    middleman (4.5.1)
       coffee-script (~> 2.2)
-      haml (>= 4.0.5, < 6.0)
+      haml (>= 4.0.5)
       kramdown (>= 2.3.0)
-      middleman-cli (= 4.4.3)
-      middleman-core (= 4.4.3)
+      middleman-cli (= 4.5.1)
+      middleman-core (= 4.5.1)
     middleman-autoprefixer (3.0.0)
       autoprefixer-rails (~> 10.0)
       middleman-core (>= 4.0.0)
-    middleman-cli (4.4.3)
-      thor (>= 0.17.0, < 2.0)
-    middleman-core (4.4.3)
+    middleman-cli (4.5.1)
+      thor (>= 0.17.0, < 1.3.0)
+    middleman-core (4.5.1)
       activesupport (>= 6.1, < 7.1)
       addressable (~> 2.4)
       backports (~> 3.6)
       bundler (~> 2.0)
-      contracts (~> 0.13)
+      contracts (~> 0.13, < 0.17)
       dotenv
       erubis
       execjs (~> 2.0)
@@ -81,25 +81,25 @@ GEM
       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)
     redcarpet (3.6.0)
-    rexml (3.2.5)
+    rexml (3.2.6)
     rouge (3.30.0)
     sass (3.7.4)
       sass-listen (~> 4.0.0)
@@ -112,8 +112,8 @@ GEM
     sprockets (3.7.2)
       concurrent-ruby (~> 1.0)
       rack (> 1, < 3)
-    temple (0.10.0)
-    thor (1.2.1)
+    temple (0.10.3)
+    thor (1.2.2)
     tilt (2.0.11)
     toml (0.3.0)
       parslet (>= 1.8.0, < 3.0.0)
@@ -122,7 +122,6 @@ GEM
     uglifier (3.2.0)
       execjs (>= 0.3.0, < 3)
     webrick (1.8.1)
-    zeitwerk (2.6.0)
 
 PLATFORMS
   ruby