Update probot-config requirement to ^0.2.0

Updates the requirements on [probot-config](https://github.com/getsentry/probot-config) to permit the latest version.
- [Release notes](https://github.com/getsentry/probot-config/releases)
- [Changelog](https://github.com/probot/probot-config/blob/master/CHANGELOG.md)
- [Commits](https://github.com/getsentry/probot-config/commits/v0.2.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

package.json

@@ -26,7 +26,7 @@
     "debug": "^3.1.0",
     "p-queue": "^2.4.2",
     "probot": "^7.0.0",
-    "probot-config": "^0.1.0"
+    "probot-config": "^0.2.0"
   },
   "devDependencies": {
     "@types/debug": "0.0.30",