chore: Fix packaging

Author: sizmailov

.github/workflows/deploy.yml

@@ -12,18 +12,13 @@ jobs:
     name: Build distributions
     runs-on: ubuntu-latest
 
-    strategy:
-      matrix:
-        python:
-            - 3.8
-
     steps:
       - uses: actions/checkout@v2
 
       - name: Setup Python ${{ matrix.python }}
         uses: actions/setup-python@v2
         with:
-          python-version: ${{ matrix.python }}
+          python-version: "3.10"
 
       - name: Build dist
         run: pipx run build --sdist --wheel

setup.py

@@ -8,6 +8,7 @@
     url="https://github.com/sizmailov/pybind11-stubgen",
     version="1.0-dev.1",
     long_description=open("README.md").read(),
+    long_description_content_type="text/markdown",
     license="BSD",
     entry_points={
         "console_scripts": "pybind11-stubgen = pybind11_stubgen.__init__:main"