set protobuf to use same versions as fontbakery

Only merge once https://github.com/googlefonts/fontbakery/pull/3946 has been merged.

diff --git a/setup.py b/setup.py
index c69db2e960bba225309a8146d900dc965246d633..ed4ce0a5ea657f64d39c995eeddf083e24881906 100644 (file)
--- a/setup.py
+++ b/setup.py
@@ -53,6 +53,8 @@ setup(
     python_requires=">=3.7",
     setup_requires=['setuptools_scm>=4,<6.1'],
     install_requires=[
-        'protobuf>=3.19.4'
+        # 3.7.0 fixed a bug on parsing some METADATA.pb files.
+        # We cannot use v4 because our protobuf files have been compiled with v3.
+        'protobuf>=3.7.0, <=3.20.3',  
     ]
 )