Bump actions/setup-python to v4

https://github.com/actions/setup-python/releases/tag/v4.0.0
https://github.com/actions/setup-python/releases/tag/v4.2.0

.github/workflows/build_debug_apk.yml

@@ -58,6 +58,7 @@ jobs:
         with:
           name: Debug APK
           path: build/outputs/apk/lawnWithQuickstep/debug/*.apk
+
   send-notifications:
     runs-on: ubuntu-latest
     if: github.repository == 'LawnchairLauncher/lawnchair'
@@ -69,7 +70,7 @@ jobs:
           submodules: true
           fetch-depth: 0
       - name: Set up Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: '3.x'
       - name: Install Python packages

.github/workflows/build_release_apk.yml

@@ -38,6 +38,7 @@ jobs:
         with:
           name: Release APK
           path: build/outputs/apk/lawnWithQuickstep/release/*.apk
+
   send-notifications:
     runs-on: ubuntu-latest
     if: github.repository == 'LawnchairLauncher/lawnchair'
@@ -49,7 +50,7 @@ jobs:
           submodules: true
           fetch-depth: 0
       - name: Set up Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: '3.x'
       - name: Install Python packages

.github/workflows/release_update.yml

@@ -85,7 +85,7 @@ jobs:
           name: Release APK
           path: artifacts/release-apk
       - name: Set up Python
-        uses: actions/setup-python@v3
+        uses: actions/setup-python@v4
         with:
           python-version: 3.x
       - name: Install Python packages