Bump actions/setup-python from 1 to 3 (#23)

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] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/githubci.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/setup-python@v1
+      - uses: actions/setup-python@v3
         with:
           python-version: '3.x'
       - uses: actions/checkout@v3