Allow dependabot to update dev dependencies (#144)

* Allow dependabot to update dev dependencies

* Update CHANGELOG

Author: bgrant

.github/dependabot.yml

@@ -0,0 +1,24 @@
+# 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: "pip" # See documentation for possible values
+    directory: "/" # Location of package manifests
+    schedule:
+      interval: "weekly"
+    # Raise pull requests for dependency updates against `develop`
+    target-branch: "main"
+    allow:
+      - dependency-type: "development"
+    # Include a list of updates with a notable prefix
+    commit-message:
+      prefix: "chore"
+      prefix-development: "chore"
+      include: "scope"
+    groups:
+      # Note: The group order matters, since updates are assigned to the first matching group.
+      dev-dependencies:
+        dependency-type: "development"

CHANGELOG.md

@@ -5,6 +5,7 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 # [Unreleased]
+- [PR 144](https://github.com/salesforce/django-declarative-apis/pull/141) Allow Dependabot to update dev dependencies
 - [PR 143](https://github.com/salesforce/django-declarative-apis/pull/143) Testing: Replace `flake8` and `black` with `ruff`, add testing for Python 3.12, drop testing for Python 3.7
 
 # [0.31.5]