chore: Add DX as Codeowners (#584) #1628

Job	Run time
Test Python 3.11	28s
Test Python 3.10	25s
Test Python 3.14	49s
Test Python 3.12	36s
Test Python 3.13	27s
Test Python 3.8	34s
Test Python 3.9	27s
Smoke test (Python ${{ matrix.python }})	0s
	3m 46s

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