Batch dependency updates

.editorconfig

@@ -0,0 +1,10 @@
+root = true
+
+[*]
+charset = utf-8
+insert_final_newline = true
+end_of_line = lf
+
+[*.{yml,yaml}]
+indent_style=space
+indent_size=2

.github/dependabot.yml

@@ -1,11 +1,10 @@
-# To get started with Dependabot version updates, you'll need to specify which
-# package ecosystems to update and where the package manifests are located.
-# Please see the documentation for all configuration options:
-# https://docs.github.com/github/administering-a-repository/configuration-options-for-dependency-updates
-
 version: 2
 updates:
   - package-ecosystem: "cargo" # See documentation for possible values
     directory: "/" # Location of package manifests
     schedule:
       interval: "monthly"
+    groups:
+      all-dependencies:
+        patterns:
+          - "*"