* Revert "Revert "CORDA-3307 - add support for environment variables in linux (#5523)" (#5643)"
This reverts commit 03ab258fc2.
* Env variables with underscore are now validated using schema validation and checking for unknown key errors.
* Resolving comments from PR review.
* Fix for deprecated import.
* Reworked logic according to PR review.
* Resolved bad string parsing problems where the json structure could be broken if some symbols were included in the key or value.
* fix merge issue with sidecar image work
* add logic to refresh token in GKE
* set streaming to true
* set streaming to true
* set streaming to false, and increment number of workers for regression test as approaching 1h limit
* set PR build to run unit and integration tests
* try method distribution to see if faster
* rename test stage to reflect the fact it runs unit tests
* remove commented out parallel unit test code
* NOTICK: Mention platform version change in release notes (#5721)
Update the release notes to mention the platform version change.
* NOTICK: Mention platform version change in release notes
Added mention of preserved wire stability and compatibility across different versions.
* Typo fixes
* Corrected typo in release notes.
* Reworded change according to feedback - greatly simplified it.
* Slight rewording
* TM-88 only write the test to the file if it passes otherwise retry
* TM-88 1 failing test for testing purposes
* TM-88 fail an integration test instead of unit test
* TM-88 include failed test for retry
* TM-88 new logic for retrying failed tests
* TM-88 refactored to use retry class when dealing with test failures + copy results even after pod failure
* TM-88 remaining pods as set to prevent duplicates, limit retries to prevent crashed build and a bit more logging
* TM-88 atomic int instead of int array
* TM-88 moving atomic int outside retry loops
* TM-88 removing second retry as it is not needed
* TM-88 small fix to final copy
* TM-88 while loop to prevent destruction of results on test retry
* TM-88 removing shutdown hook
* TM-88 reverting to previous implementation
* TM-88 copying xml files before retry
* TM-88 removing fail
* TM-87 printing remaining pods on pod completion
* TM-87 extra commit to unblock jenkins?
* TM-87 extra commit to unblock jenkins?
* TM-87 pr comments
