⬇️((project) downgrade minimum version of importlib-metadata

To stay compatible with Python 3.8, downgrading minimum version required for
`importlib-metadata`.

Author: wilbrdt

pyproject.toml

@@ -30,7 +30,7 @@ keywords = ["LRS", "Analytics", "xAPI", "Open edX"]
 dependencies = [
     # By default, we only consider core dependencies required to use Ralph as a
     # library (mostly models).
-    "importlib-metadata>=8.7, <8.8",
+    "importlib-metadata>=8.5, <8.8",
     "langcodes>=3.2.0",
     "pydantic[email]>=2.5.3,<3.0",
     "pydantic_settings>=2.1.0,<3.0",