Bump actions/setup-python from 1 to 3 (#2215)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 1 to 3.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v1...v3)

---
updated-dependencies:
- dependency-name: actions/setup-python
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/publish.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - uses: "actions/checkout@v2"
-      - uses: "actions/setup-python@v1"
+      - uses: "actions/setup-python@v3"
         with:
           python-version: 3.7
       - name: "Install dependencies"

.github/workflows/test-suite.yml

@@ -18,7 +18,7 @@ jobs:
 
     steps:
       - uses: "actions/checkout@v2"
-      - uses: "actions/setup-python@v2"
+      - uses: "actions/setup-python@v3"
         with:
           python-version: "${{ matrix.python-version }}"
       - name: "Install dependencies"