WASHINGTON — An executive at cybersecurity company CrowdStrike apologized in testimony to Congress for sparking a global technology outage over the summer. “We let our customers down,” said Adam Meyers, who leads CrowdStrike’s threat intelligence division, in a hearing before a U.S. House cybersecurity subcommittee Tuesday. Austin, Texas-based CrowdStrike has blamed a bug in an update that allowed its cybersecurity systems to push bad data out …