PYTHON-3686 Pin mypy dependencies, don't upgrade pip

.github/workflows/test-python.yml

@@ -58,8 +58,11 @@ jobs:
           cache-dependency-path: 'setup.py'
       - name: Install dependencies
         run: |
-          python -m pip install -U pip mypy==0.990
-          pip install -e ".[zstd, encryption, ocsp]"
+          python -m pip install -U pip==23.0.1
+          python -m pip install mypy==0.990 tomli==2.0.1 typed-ast==1.5.4 typing-extensions==4.5.0
+          python -m pip install -e ".[zstd, encryption, ocsp]"
+          python -m pip uninstall -y pymongo
+          python -m pip freeze
       - name: Run mypy
         run: |
           mypy --install-types --non-interactive bson gridfs tools pymongo

MANIFEST.in

@@ -12,3 +12,7 @@ include tools/README.rst
 recursive-include test *.pem
 recursive-include test *.py
 recursive-include bson *.h
+recursive-include bson *.pyi
+recursive-include bson *.typed
+recursive-include gridfs *.typed
+recursive-include pymongo *.typed