✏️ Fix typo in dependabot.yml comment

Author: Nick Sullivan

.github/dependabot.yml

@@ -1,5 +1,5 @@
 ---
-# Automatically update depencies with Dependabot
+# Automatically update dependencies with Dependabot
 # Please see the documentation for all configuration options:
 # https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates