Upgrade to GitHub-native Dependabot

Author: dependabot-preview[bot]

.github/dependabot.yml

@@ -0,0 +1,25 @@
+version: 2
+updates:
+- package-ecosystem: pip
+  directory: "/"
+  schedule:
+    interval: daily
+    time: "04:00"
+  open-pull-requests-limit: 10
+  labels:
+  - skip-changelog
+  - dependencies
+  ignore:
+  - dependency-name: pytest
+    versions:
+    - "> 6.0.0, < 6.1"
+  - dependency-name: pytest
+    versions:
+    - "> 6.1.0, < 6.2"
+  - dependency-name: pytest
+    versions:
+    - "> 6.2.0, < 6.3"
+  - dependency-name: scrapy
+    versions:
+    - ">= 1.8.a, < 1.9"
+  rebase-strategy: disabled