Add firecloud conda dependency to baseimage

The firecloud (FISS) Python package is needed for tasks that insert
results into Terra data tables. This was present in the old viral-core
requirements but was not carried over during the v3 monorepo transition,
causing create_or_update_sample_tables to fail with ModuleNotFoundError.

The package is tiny (58KB, noarch) and its main dependencies
(google-cloud-storage, google-auth) are already in baseimage.

Fixes #1038

Author: dpark01

docker/requirements/baseimage.txt

@@ -11,6 +11,7 @@ udocker>=1.3.16
 
 # Cloud CLIs
 awscli>=1.32.0
+firecloud>=0.16.35
 google-cloud-sdk>=556.0.0
 google-cloud-storage>=2.14.0