Giants free safety Xavier McKinney said on Twitter Monday that he will miss “a few weeks” due to a hand injury sustained while riding ATVs in Cabo during the team’s bye week. The third-year safety is the team’s defensive play caller and a captain. It is believed this snaps the NFL’s active consecutive snaps streak, which McKinney held dating back to Week 11 of the 2020 season. “I will do everything I can to get back as quickly as possible so I can contribute to what we’re building here in NY,” McKinney wrote. Losing McKinney, 23, a second round pick out of Alabama in 2020, is a major blow for …