Increment patch number #279

Job	Run time
test (1.6, ubuntu-latest, x86)	2m 41s
test (1.6, ubuntu-latest, x64)	2m 16s
test (1.6, macOS-latest, x64)	4m 37s
test (1.6, windows-latest, x86)	7m 18s
test (1.6, windows-latest, x64)	8m 17s
test (1, ubuntu-latest, x86)	2m 45s
test (1, ubuntu-latest, x64)	2m 18s
test (1, macOS-latest, x64)	3m 5s
test (1, windows-latest, x86)	5m 4s
test (1, windows-latest, x64)	3m 7s
test (nightly, ubuntu-latest, x86)	3m 15s
test (nightly, ubuntu-latest, x64)	2m 39s
test (nightly, macOS-latest, x64)	7m 11s
test (nightly, windows-latest, x86)	5m 43s
test (nightly, windows-latest, x64)	3m 46s
	1h 4m 2s

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