feat(cloud-native): add support for legacy and simple JSON data

[iromli]

Description

Target issue

closes #1872

Implementation Details

The changeset adds support for legacy and new simple JSON data format using auto-detection of column's value.

How to test:

1. Flex 5.1.5 and lower:

   • install flex 5.1.5 chart; ensure format jansAppConf.jansSmtpConf value is {"v": []}
   • upgrade to chart in this PR (change jans image to 1.1.6_json and flex image to 5.1.6); ensure format jansAppConf.jansSmtpConf value is still {"v": []} after upgrade

2. Flex 5.1.6+:

   • install chart in this PR (change jans image to 1.1.6_json and flex image to 5.1.6_json); ensure format jansAppConf.jansSmtpConf value is []
   • do upgrade; ensure format jansAppConf.jansSmtpConf value is still [] after upgrade

[sonarcloud]

Quality Gate passed for 'flex_admin_ui'

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud