Merge pull request #15 from arduino/dependabot/github_actions/actions/setup-python-4

Bump actions/setup-python from 3 to 4

Author: per1234

.github/workflows/release.yml

@@ -7,7 +7,7 @@ env:
   ARTIFACT_NAME: dist
   # The project's folder on Arduino's download server for uploading builds
   AWS_PLUGIN_TARGET: /tools/
-  # See: https://github.com/actions/setup-python/tree/v3#available-versions-of-python
+  # See: https://github.com/actions/setup-python/tree/main#available-versions-of-python
   PYTHON_VERSION: "3.7"
   MCUBOOT_PATH: ${{ github.workspace }}/mcuboot
   IMGTOOL_PACKING_PATH: ${{ github.workspace }}/imgtool-packing
@@ -64,7 +64,7 @@ jobs:
         run: git apply -v "${{ env.IMGTOOL_PACKING_PATH }}/patches/"*.patch
 
       - name: Set up Python ${{ env.PYTHON_VERSION }}
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: ${{ env.PYTHON_VERSION }}
           architecture: ${{ matrix.python_arch }}