Update bug bounty info in README.md #1712

Job	Run time
Wheel on macos-latest py-3.7	2m 20s
Wheel on ubuntu-latest py-3.7	2m 59s
Checks	53s
Wheel on windows-latest py-3.7	2m 39s
Run fuzz targets (macos-latest, 3.7)	38m 34s
Run fuzz targets (ubuntu-latest, 3.7)	15m 32s
coverage	8m 5s
Unit tests (macos-latest, 3.7)	5m 20s
Unit tests (ubuntu-latest, 3.7)	3m 27s
Unit tests (windows-latest, 3.7)	6m 36s
Upload to PyPI	18s
	1h 26m 43s

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