Add flag for xml report #397

Job	Run time
test-build-from-source (cp311)	43s
test-build-wheel-manylinux (3.8)	45s
test-build-from-source (pp39)	45s
run-tests (ubuntu-latest, 3.8)	29s
test-build-wheel-manylinux (3.9)	43s
test-build-wheel-manylinux (3.10)	45s
run-tests (ubuntu-latest, 3.9)	29s
run-tests (ubuntu-latest, pypy-3.9)	1m 14s
test-build-wheel-manylinux (3.11)	45s
run-tests (ubuntu-latest, 3.10)	22s
run-tests (ubuntu-latest, 3.11)	22s
run-tests (ubuntu-latest, 3.12)	26s
run-tests (ubuntu-latest, 3.13)	29s
run-tests (macos-latest, pypy-3.9)	50s
run-tests (macos-latest, 3.10)	30s
run-tests (macos-latest, 3.11)	23s
run-tests (macos-latest, 3.12)	22s
run-tests (macos-latest, 3.13)	20s
run-tests (windows-latest, 3.8)	1m 13s
run-tests (windows-latest, 3.9)	1m 26s
run-tests (windows-latest, pypy-3.9)	1m 39s
run-tests (windows-latest, 3.10)	1m 27s
run-tests (windows-latest, 3.11)	1m 14s
run-tests (windows-latest, 3.12)	45s
run-tests (windows-latest, 3.13)	1m 20s
run-tests (macos-13, 3.8)	1m 17s
run-tests (macos-13, 3.9)	48s
run-tests (macos-13, pypy-3.9)	1m 10s
run-tests (macos-13, 3.10)	1m 2s
run-tests (macos-13, 3.11)	45s
	24m 48s

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