Group dependabot updates (#71)

Author: StanFromIreland

.github/dependabot.yml

@@ -23,6 +23,8 @@ updates:
           - "tailwindcss"
           - "@tailwindcss/*"
           - "postcss"
+      dependencies:
+        patterns: ["*"]
     cooldown:
       # https://blog.yossarian.net/2025/11/21/We-should-all-be-using-dependency-cooldowns
       # Cooldowns protect against supply chain attacks by avoiding the
@@ -34,5 +36,9 @@ updates:
     schedule:
       interval: monthly
     open-pull-requests-limit: 5
+    groups:
+      actions:
+        patterns:
+          - "*"
     cooldown:
       default-days: 14