Update CI (#18)

.github/workflows/checks.yml

@@ -7,12 +7,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: "3.10"
 
       - name: check formatting via nox
         run: |
@@ -22,12 +22,12 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
-      - name: Set up Python 3.9
-        uses: actions/setup-python@v2
+      - name: Set up Python 3.10
+        uses: actions/setup-python@v4
         with:
-          python-version: 3.9
+          python-version: "3.10"
 
       - name: run mypy via nox
         run: |

.github/workflows/publish.yml

@@ -0,0 +1,20 @@
+name: publish
+
+on:
+  release:
+    types: [published]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+      - name: publish
+        run: |
+          pip install build
+          python -m build
+          pip install twine
+          twine upload dist/* -u __token__ -p ${{ secrets.PYPI_TOKEN }}