build(python): remove setuptools_scm dependency

We update version in several .toml and .json files
on every release anyway, so updating pyproject.toml is easy.

setuptools_scm makes it more difficult to build
python packages for software distributions
because it requires full git checkout
with tags rather than just a worktree.
It is also possible to remove or move tags
after the release, so git revision no longer
pins python package version if setuptools_scm is used.

scripts/set_core_version.py

@@ -73,6 +73,8 @@ def main():
         "deltachat-jsonrpc/Cargo.toml",
         "deltachat-rpc-server/Cargo.toml",
         "deltachat-repl/Cargo.toml",
+        "python/pyproject.toml",
+        "deltachat-rpc-client/pyproject.toml",
     ]
     try:
         opts = parser.parse_args()