Bump actions/setup-python from 2 to 3 (#1110)

Bumps [actions/setup-python](https://github.com/actions/setup-python) from 2 to 3.
- [Release notes](https://github.com/actions/setup-python/releases)
- [Commits](actions/setup-python@v2...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/test-library.yml

@@ -72,7 +72,7 @@ jobs:
       container-platforms: ${{ steps.container.outputs.platforms }}
     steps:
     - name: Switch to using Python 3.9 by default
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: 3.9
     - name: >-
@@ -225,7 +225,7 @@ jobs:
 
     steps:
     - name: Switch to using Python v3.10
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: '3.10'
     - name: >-
@@ -350,7 +350,7 @@ jobs:
 
     steps:
     - name: Switch to using Python v3.10
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: '3.10'
     - name: >-
@@ -467,7 +467,7 @@ jobs:
 
     steps:
     - name: Switch to using Python v${{ matrix.python }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python }}
     - name: >-
@@ -670,7 +670,7 @@ jobs:
     steps:
     - uses: actions/checkout@v3
     - name: Setup Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python }}
     - name: Brew
@@ -724,7 +724,7 @@ jobs:
       with:
         fetch-depth: 0
     - name: Setup Python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v3
       with:
         python-version: ${{ matrix.python }}
     - name: Install Pip Dependencies