chore(schemacode-ci): Fix installation to not replicate test dependency list

Author: effigies

.github/workflows/schemacode_ci.yml

@@ -33,7 +33,7 @@ jobs:
       - name: "Install build dependencies"
         run: pip install --upgrade build twine
       - name: "Install test dependencies on tag"
-        run: pip install --upgrade pytest pyyaml pandas tabulate markdown-it-py pyparsing
+        run: pip install --upgrade tools/schemacode[test]
         if: ${{ startsWith(github.ref, 'refs/tags/schema-') }}
       - name: "Build archive on tag"
         run: pytest tools/schemacode/bidsschematools -k make_archive