Fix VSAC key environment variable

[plarocque4]

Describe your changes

The environment vsac key variable for running standalone (outside of docker) needs to change. Log the error that occurs when failing to parse a fhir resource on load.

Issue ticket number and Jira link

none

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[KeeyanGhoreshi]

no idea why the test is failing, but would approve this otherwise

[smalho01]

do we want to fix the failing test case before merging @plarocque4 or should we just merge now? The changes look good to me