Bump haml from 5.0.4 to 5.1.0

Bumps [haml](https://github.com/haml/haml) from 5.0.4 to 5.1.0.
- [Release notes](https://github.com/haml/haml/releases)
- [Changelog](https://github.com/haml/haml/blob/master/CHANGELOG.md)
- [Commits](haml/haml@v5.0.4...v5.1.0)

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

Gemfile.lock

@@ -85,7 +85,7 @@ GEM
     ffi (1.9.25)
     globalid (0.4.2)
       activesupport (>= 4.2.0)
-    haml (5.0.4)
+    haml (5.1.0)
       temple (>= 0.8.0)
       tilt
     hirb (0.7.3)
@@ -193,12 +193,12 @@ GEM
       actionpack (>= 4.0)
       activesupport (>= 4.0)
       sprockets (>= 3.0.0)
-    temple (0.8.0)
+    temple (0.8.1)
     term-ansicolor (1.7.1)
       tins (~> 1.0)
     thor (0.20.3)
     thread_safe (0.3.6)
-    tilt (2.0.8)
+    tilt (2.0.9)
     tins (1.20.2)
     tzinfo (1.2.5)
       thread_safe (~> 0.1)