Beats version 5.6.9

Affecting all Beats

Fix a type issue when specifying certicate authority when using the import_dashboards command. 6678

Packetbeat

Fix http status phrase parsing not allow spaces. 5312
Fix http parse to allow to parse get request with space in the URI. 5495
Fix mysql SQL parser to trim \r from Windows Server SELECT\r\n\t1. 5572
Fix corruption when parsing repeated headers in an HTTP request or response. 6325
Fix panic when parsing partial AMQP messages. 6384
Fix out of bounds access to slice in MongoDB parser. 6256
Fix sniffer hanging on exit under Linux. 6535
Fix bounds check error in http parser causing a panic. 6750
HTTP parses successfully on empty status phrase. 6176
HTTP parser supports broken status line. 6631