Bump middleman from 4.4.3 to 4.5.0

Bumps [middleman](https://github.com/middleman/middleman) from 4.4.3 to 4.5.0.
- [Changelog](https://github.com/middleman/middleman/blob/main/CHANGELOG.md)
- [Commits](https://github.com/middleman/middleman/commits/v4.5.0)

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

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

Gemfile.lock

@@ -78,8 +78,9 @@ GEM
  google-protobuf (3.25.1-arm64-darwin)
  google-protobuf (3.25.1-x86_64-darwin)
  google-protobuf (3.25.1-x86_64-linux)
- haml (5.2.2)
- temple (>= 0.8.0)
+ haml (6.3.0)
+ temple (>= 0.8.2)
+ thor
  tilt
  hamster (3.0.0)
  concurrent-ruby (~> 1.0)
@@ -106,22 +107,22 @@ GEM
  rb-inotify (~> 0.9, >= 0.9.10)
  map (6.6.0)
  memoist (0.16.2)
- middleman (4.4.3)
+ middleman (4.5.0)
  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 (= 4.5.0)
+ middleman-core (= 4.5.0)
  middleman-autoprefixer (3.0.0)
  autoprefixer-rails (~> 10.0)
  middleman-core (>= 4.0.0)
  middleman-blog (4.0.1)
  addressable (~> 2.3)
  middleman-core (>= 4.0.0)
  tzinfo (>= 0.3.0)
- middleman-cli (4.4.3)
+ middleman-cli (4.5.0)
  thor (>= 0.17.0, < 2.0)
- middleman-core (4.4.3)
+ middleman-core (4.5.0)
  activesupport (>= 6.1, < 7.1)
  addressable (~> 2.4)
  backports (~> 3.6)