Add hard-coded version before build (#76)

Author: mart-r

.github/workflows/medcat-v1_production.yml

@@ -53,6 +53,7 @@ jobs:
 
       - name: Build a binary wheel and a source tarball
         run: >-
+          SETUPTOOLS_SCM_PRETEND_VERSION_FOR_MEDCAT="1.16.1"
           python -m
           build
           --sdist