SKIP UPGRADE BB template changes for new Loki Chart Refactor

Package Merge Request

Package Changes

• Upgraded loki image from 2.5.0 to version 2.6.0
• Upgraded dependency chart loki from 2.11.1 to 2.13.1
• Upgraded chart to loki-simple-scalable from 0.4.0 to 1.7.6

loki-simple-scalable upstream chart includes version 1.0 update so lots of values/configs/templates have changed, updated documentation to match and ensured that package, BB CI and BB production value changes are as transparent as possible

Package MR

https://repo1.dso.mil/platform-one/big-bang/apps/sandbox/loki/-/merge_requests/39

For Issue

Closes https://repo1.dso.mil/platform-one/big-bang/apps/sandbox/loki/-/issues/22

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1245

Closes https://repo1.dso.mil/platform-one/big-bang/bigbang/-/issues/1256