zabbix-6.1.2

• Updated documentation
• Bump chart version
• Bump zabbix version in doc/examples/kind/values.yaml file
• Bump postgresql and timescaledb version in doc/examples/kind/values.yaml file
• Disabled ha in doc/examples/kind/values.yaml file
• Fixed pullSecrets values field for webdriver deployment

Fixes:

• #137

PRs:

• #137
• #138

Thanks @aeciopires @Nyralei