fix Ooiion 1551

https://jira.oceanobservatories.org/tasks/browse/OOIION-1551

*All* unit and integration tests for the platform agent completing OK locally and --with-pycc  (except ion.agents.platform.rsn.test.test_rsn_platform_driver:TestRsnPlatformDriver.test  , which has been failing already, see ooiion-1495).

Please review when convenient but merging should wait until after PRR.

@edwardhunter please review
@jamie-cyber1 please review
@MauriceManning please review