chore: roll to playwright@1.7.1 (microsoft#187)

chore: roll to playwright@1.7.0 and mark 0.170.0 (microsoft#172)

chore: bump version to 0.162.1

chore: roll to Playwright 1.6.2

chore: roll to Playwright 1.6.1

chore: roll to 1.5.2 official (microsoft#123)

chore: roll to 1.5.1 official (microsoft#116)

chore: roll to 1.5.0 official (microsoft#115)

chore: roll the official to ~1.4.0

chore: roll to 1.4.0-next.1599776227719, the 1.4 release