* updated available v2 connectors w/ burnettk
* install postgresql-client in the docker image w/ burnettk
* updated spiffworkflow-proxy so it can find the correct commands w/ burnettk
* use h2 in the README w/ burnettk
* update connector-http with GetRequestV2 param fix
* update connector-http to fix post request v2
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Co-authored-by: jasquat <jasquat@users.noreply.github.com>
Co-authored-by: burnettk <burnettk@users.noreply.github.com>