chore(mergify): add Hogan as team member (#22870)

----

### All Submissions:

* [x] Have you followed the guidelines in our [Contributing guide?](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md)

### Adding new Unconventional Dependencies:

* [ ] This PR adds new unconventional dependencies following the process described [here](https://github.com/aws/aws-cdk/blob/main/CONTRIBUTING.md/#adding-new-unconventional-dependencies)

### New Features

* [ ] Have you added the new feature to an [integration test](https://github.com/aws/aws-cdk/blob/main/INTEGRATION_TESTS.md)?
	* [ ] Did you use `yarn integ` to deploy the infrastructure and generate the snapshot (i.e. `yarn integ` without `--dry-run`)?

*By submitting this pull request, I confirm that my contribution is made under the terms of the Apache-2.0 license*

.mergify.yml

@@ -10,7 +10,7 @@ pull_request_rules:
       label:
         add: [ contribution/core ]
     conditions:
-      - author~=^(RomainMuller|rix0rrr|Jerry-AWS|MrArnoldPalmer|iliapolo|pkandasamy91|SoManyHs|uttarasridhar|otaviomacedo|madeline-k|kaizencc|comcalvi|corymhall|peterwoodworth|ryparker|TheRealAmazonKendra|yuth|vinayak-kukreja|mrgrain)$
+      - author~=^(RomainMuller|rix0rrr|Jerry-AWS|MrArnoldPalmer|iliapolo|pkandasamy91|SoManyHs|uttarasridhar|otaviomacedo|madeline-k|kaizencc|comcalvi|corymhall|peterwoodworth|ryparker|TheRealAmazonKendra|yuth|vinayak-kukreja|mrgrain|HBobertz)$
       - -label~="contribution/core"
   - name: automatic merge
     actions: