Add v7.1.0 tag

Add v6.8.0 tag

Add v6.7.2 tag

Add v7.0.1 tag

Align host.hostname with ECS under kubernetes (elastic#2059) (elastic…

…#2072)

[docs] 7.0.0-rc1 release notes (elastic#2051)

[6.7] Update beats framework to 565c8cd (elastic#2046)

[6.7] Update beats framework to 8844f10 (elastic#1996)

Update beats framework to 4920cd6 (elastic#2028)

Update beats framework to 9d5f9a9 (elastic#1976)