7.16.1 release changelog

[jmlrt]

• 7.16.1 as default version.

PR	Author	Title
#1382	@piglovesyou	[elasticsearch] fix typo
#1386	@jmlrt	[meta] fail make test on error
#1409	@framsouza	[all] add support to ingress networking.k8s.io/v1 & ingressClassName
#1410	@jmlrt	[meta] add support for K8S 1.21 and remove 1.18
#1458	@jmlrt	[elasticsearch] use bash for readiness script
#1460	@jmlrt	[meta] download goss outside of pods
#1464	@jmlrt	[elasticsearch] use bash for keystore init container
#1466	@jmlrt	[elasticsearch] fix a typo in 4e31e0c
#1469	@jmlrt	[metricbeat] remove es metricset search query for oss example
#1474	@framsouza	[elasticsearch] disabling deprecation logs to be indexed
#1475	@jmlrt	[meta] initiate 7.16 branch
#1476	@jmlrt	[meta] update backport config for 7.16 branch
#1480	@jmlrt	[elasticsearch] fix a lines order in example values

[mgreau]

LGTM