Update .tool-versions to latest Ruby version (#1209)

In #1176, `.tool-versions` was updated to be less specific about the ruby
version. asdf isn't smart enough to figure out which Ruby version to use,
though.

This updates the Ruby version specified in `.tool-versions` to the latest
release (3.0.3).

.tool-versions

@@ -1 +1 @@
-ruby 3.0
+ruby 3.0.3

docs/CHANGELOG.md

@@ -7,6 +7,10 @@ title: Changelog
 
 ## main
 
+* Update Ruby version in `.tool-versions`.
+
+    *Connor McQuillan*
+
 * Add a test to ensure blocks can be passed into lambda slots without the need for any other arguments.
 
     *Simon Fish*

docs/index.md

@@ -119,6 +119,7 @@ ViewComponent is built by over a hundred members of the community, including:
 <img src="https://avatars.githubusercontent.com/bradparker?s=64" alt="bradparker" width="32" />
 <img src="https://avatars.githubusercontent.com/cesariouy?s=64" alt="cesariouy" width="32" />
 <img src="https://avatars.githubusercontent.com/cover?s=64" alt="cover" width="32" />
+<img src="https://avatars.githubusercontent.com/cpjmcquillan?s=64" alt="cpjmcquillan" width="32" />
 <img src="https://avatars.githubusercontent.com/czj?s=64" alt="czj" width="32" />
 <img src="https://avatars.githubusercontent.com/dark-panda?s=64" alt="dark-panda" width="32" />
 <img src="https://avatars.githubusercontent.com/davekaro?s=64" alt="davekaro" width="32" />