Fix #340 - only bar access_token as header

[jason-fox]

Proposed changes

Untested change, but this should allow the authzforce location to be queried using

curl -X GET \ 
  'http://keyrock/user?access_token={{access_token}}&app_id={{app_id}}&authzforce=true'

As was possible prior to Keyrock 8.4.0

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