Split CI workflows into 'test' and 'deploy'

This makes them easier to maintain and follows how other pytest repositories have evolved.

Also made some changes to the deploy workflow:

* Using Python 3.10
* Using `build` package instead of calling `python setup.py`

.github/workflows/deploy.yml

@@ -0,0 +1,36 @@
+name: deploy
+
+on:
+  push:
+    tags:
+      - "*"
+
+permissions: {}
+
+jobs:
+  deploy:
+    if: github.repository == 'pytest-dev/pytest'
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          fetch-depth: 0
+
+      - uses: actions/setup-python@v4
+        with:
+          python-version: "3.10"
+
+      - name: Install dependencies
+        run: |
+          python -m pip install --upgrade pip
+          pip install --upgrade build
+
+      - name: Build package
+        run: python -m build
+
+      - name: Publish package
+        uses: pypa/gh-action-pypi-publish@release/v1
+        with:
+          user: __token__
+          password: ${{ secrets.pypi_token }}

.github/workflows/main.yml → .github/workflows/test.yml

@@ -1,18 +1,16 @@
-name: main
+name: test
 
 on:
   push:
     branches:
       - main
-    tags:
-      - "*"
 
   pull_request:
     branches:
       - main
 
 jobs:
-  build:
+  test:
     runs-on: ${{ matrix.os }}
 
     strategy:
@@ -113,30 +111,3 @@ jobs:
       env:
         CODECOV_NAME: ${{ matrix.name }}
       run: bash scripts/upload-coverage.sh -F GHA,${{ runner.os }}
-
-  deploy:
-    if: github.event_name == 'push' && startsWith(github.event.ref, 'refs/tags') && github.repository == 'pytest-dev/pluggy'
-    runs-on: ubuntu-latest
-
-    steps:
-      - uses: actions/checkout@v3
-        with:
-          fetch-depth: 0
-
-      - uses: actions/setup-python@v4
-        with:
-          python-version: "3.8"
-
-      - name: Install dependencies
-        run: |
-          python -m pip install --upgrade pip
-          pip install --upgrade wheel setuptools setuptools_scm
-
-      - name: Build package
-        run: python setup.py sdist bdist_wheel
-
-      - name: Publish package
-        uses: pypa/gh-action-pypi-publish@v1.5.1
-        with:
-          user: __token__
-          password: ${{ secrets.pypi_token }}

README.rst

@@ -73,7 +73,7 @@ Running this directly gets us::
 .. |versions| image:: https://img.shields.io/pypi/pyversions/pluggy.svg
     :target: https://pypi.org/pypi/pluggy
 
-.. |github-actions| image:: https://github.com/pytest-dev/pluggy/workflows/main/badge.svg
+.. |github-actions| image:: https://github.com/pytest-dev/pluggy/workflows/test/badge.svg
     :target: https://github.com/pytest-dev/pluggy/actions
 
 .. |conda-forge| image:: https://img.shields.io/conda/vn/conda-forge/pluggy.svg