Bump to v0.12.3 and clean-up scripts & docs (#890)

* Bump version to 0.12.3rc0
* Bump to v0.12.3 and clean-up scripts & docs

docs/internal/publishing.md

@@ -39,9 +39,11 @@ This will start the Mesop dev server and you can test that hot reload works.
 ### Gunicorn integration
 
 ```sh
-pip install gunicorn && gunicorn main:me
+gunicorn main:me
 ```
 
+> Note: `gunicorn` should already be installed by the shell script above.
+
 ## Upload to PyPI
 
 If the testing above looks good, then continue with uploading to PyPI.

mesop/version.py

@@ -1,6 +1,6 @@
 """Contains the version string."""
 
-VERSION = "0.12.2"
+VERSION = "0.12.3"
 
 if __name__ == "__main__":
   print(VERSION)

scripts/pip.sh

@@ -24,7 +24,8 @@ fi
 virtualenv --python python3 /tmp/mesoprelease-test/venv-test && \
 source /tmp/mesoprelease-test/venv-test/bin/activate && \
 uv pip install --upgrade pip && \
-uv pip install -r mesop/pip_package/requirements.txt --no-binary pydantic && \
+uv pip install -r mesop/pip_package/requirements.txt && \
+uv pip install gunicorn && \
 bazel run //mesop/pip_package:build_pip_package -- /tmp/mesoprelease-test/mesop.tar.gz && \
 cp -r ./scripts/smoketest_app /tmp/mesoprelease-test && \
 # Do "-P" so that it follows the physical path so that