chore(internal): remove sean from issue triage (#29443)

Issue number: N/A

---------

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## What is the current behavior?
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## What is the new behavior?
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- Removes me from being auto-assigned to issue triage
- I was already removed from CODEOWNERS, so no changes are needed there.

## Does this introduce a breaking change?

- [ ] Yes
- [x] No

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## Other information

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.github/workflows/assign-issues.yml

@@ -13,6 +13,6 @@ jobs:
       - name: 'Auto-assign issue'
         uses: pozil/auto-assign-issue@65947009a243e6b3993edeef4e64df3ca85d760c # v1.14.0
         with:
-          assignees: sean-perkins, brandyscarney, thetaPC
+          assignees: brandyscarney, thetaPC
           numOfAssignee: 1
           allowSelfAssign: false