chore: block major renovate bumps on main branch (#4078)

Author: castastrophe

.github/renovate.json

@@ -10,6 +10,11 @@
 	"labels": ["dependencies", "skip_vrt", "ready-for-review"],
 	"rangeStrategy": "bump",
 	"packageRules": [
+		{
+			"matchUpdateTypes": ["major"],
+			"matchBaseBranches": ["main"],
+			"enabled": false
+		},
 		{
 			"groupName": "storybook ecosystem",
 			"matchPackageNames": ["storybook", "@storybook/*", "@types/storybook*"],