7.9.3 changelog

[nkammah]

7.9.3

• 7.9.3 as default version.

PR	Author	Title
	Nassim Kammah	7.9.3 release
#818	@jmlrt	[elasticsearch][kibana] disable nss dentry cache
#826	@nkammah	Specify chart version in install instructions
#823	@nkammah	7.9.2 release
#816	@jmlrt	[helm] bump helm version to 2.16.12
#819	@nkammah	fix bumper.py perms
#811	@jmlrt	[elasticsearch] fix secrets names in examples
#729	@floretan	Include pre-releases in the semver range.
#810	@luanguimaraesla	[elasticsearch] add loadBalancer externalTrafficPolicy option
#778	@erihanse	[metricbeat] Support secrets
#806	@ygel	[release] bump 7.9 branch to 7.9.2-SNAPSHOT