chore(deps): switch from dependabot to renovate using shared eslint community configuration (#537)

Signed-off-by: Jérôme Benoit <jerome.benoit@piment-noir.org>

Author: jerome-benoit

.github/dependabot.yml

@@ -0,0 +1,4 @@
+{
+  "$schema": "https://docs.renovatebot.com/renovate-schema.json",
+  "extends": ["github>eslint/eslint//.github/renovate.json5"]
+}