Run Prettier over Markdown and YAML files (#35)

## Summary

Partly personal preference, but mostly to align with other Astral
projects.

action.yml

@@ -2,20 +2,24 @@ name: 'Python setup uv'
 description: 'Set up your GitHub Actions workflow with a specific version of uv'
 author: 'eifinger'
 inputs:
-  version: 
+  version:
     description: 'The version of uv to install'
     default: '0.4.4'
   checksum:
     description: 'The checksum of the uv version to install'
     required: false
   github-token:
-    description: 'Used to increase the rate limit when retrieving versions and downloading uv.'
+    description:
+      'Used to increase the rate limit when retrieving versions and downloading
+      uv.'
     required: false
   enable-cache:
     description: 'Enable caching of the uv cache'
     default: 'false'
   cache-dependency-glob:
-    description: 'Glob pattern to match files relative to the repository root to control the cache. e.g. "uv.lock"'
+    description:
+      'Glob pattern to match files relative to the repository root to control
+      the cache. e.g. "uv.lock"'
     required: false
   cache-suffix:
     description: 'Suffix for the cache key'
@@ -25,9 +29,9 @@ inputs:
     default: '/tmp/setup-uv-cache'
 outputs:
   uv-version:
-    description: "The installed uv version. Useful when using latest."
+    description: 'The installed uv version. Useful when using latest.'
   cache-hit:
-    description: "A boolean value to indicate a cache entry was found"
+    description: 'A boolean value to indicate a cache entry was found'
 runs:
   using: 'node20'
   main: 'dist/setup/index.js'
@@ -35,4 +39,4 @@ runs:
   post-if: success()
 branding:
   icon: 'package'
-  color: 'blue'
+  color: 'blue'