chore: add renovate bot config

Author: erezrokah

renovate.json

@@ -0,0 +1,6 @@
+{
+  "extends": ["github>netlify/renovate-config:default"],
+  "ignorePresets": [":prHourlyLimit2"],
+  "semanticCommits": true,
+  "masterIssue": true
+}