Update mergifyio (#283)

## Description

<!--- Please describe what this PR is going to change -->
Disable speculative checks and allow Mergify to merge PRs from me.

## Why is this needed

<!--- Link to issue you have raised -->

Fixes: #

## How Has This Been Tested?
<!--- Please describe in detail how you tested your changes. -->
<!--- Include details of your testing environment, and the tests you ran
to -->
<!--- see how your change affects other areas of the code, etc. -->


## How are existing users impacted? What migration steps/scripts do we
need?

<!--- Fixes a bug, unblocks installation, removes a component of the
stack etc -->
<!--- Requires a DB migration script, etc. -->


## Checklist:

I have:

- [ ] updated the documentation and/or roadmap (if required)
- [ ] added unit or e2e tests
- [ ] provided instructions on how to upgrade

Author: jacobweinstock

.github/mergify.yml

@@ -1,8 +1,12 @@
+merge_queue:
+  max_parallel_checks: 1
 queue_rules:
   - name: default
     queue_conditions:
       - base=main
-      - "#approved-reviews-by>=1"
+      - or:
+          - "#approved-reviews-by>=1"
+          - author=jacobweinstock
       - "#changes-requested-reviews-by=0"
       - "#review-requested=0"
       - check-success=DCO