Merge pull request #542 from astropy/dependabot/github_actions/actions/setup-python-3

Bump actions/setup-python from 2 to 3

Author: adrn

.github/workflows/build.yml

@@ -17,7 +17,7 @@ jobs:
       - uses: actions/checkout@v3
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: 3.9
 

.github/workflows/prs.yml

@@ -21,7 +21,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: 3.9
 

.github/workflows/test-scripts.yml

@@ -24,7 +24,7 @@ jobs:
           fetch-depth: 0
 
       - name: Set up Python
-        uses: actions/setup-python@v2
+        uses: actions/setup-python@v3
         with:
           python-version: 3.9