Update github actions to latest versions (#1680)

* Update action versions

Getting deprecation warnings, so time to upgrade.

* Use setup-python@v4

.github/workflows/android.yml

@@ -14,10 +14,10 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
     - name: Setup python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.8
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup environment
       run: |
         pip install -e .

.github/workflows/ios.yml

@@ -15,10 +15,10 @@ jobs:
     - name: Setup python
       # Needs to be skipped on our self-hosted runners tagged as 'apple-silicon-m1'
       if: ${{ matrix.runs_on  != 'apple-silicon-m1' }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Setup environment
       run: |
         source .ci/osx_ci.sh

.github/workflows/pypi-release.yml

@@ -5,9 +5,9 @@ jobs:
   pypi_release:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python 3.x
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: 3.x
     - name: Install dependencies

.github/workflows/support.yml

@@ -11,7 +11,7 @@ jobs:
   action:
     runs-on: ubuntu-latest
     steps:
-      - uses: dessant/support-requests@v2
+      - uses: dessant/support-requests@v3
         with:
           github-token: ${{ github.token }}
           support-label: 'support'

.github/workflows/test_python.yml

@@ -18,10 +18,10 @@ jobs:
 
     runs-on: ${{ matrix.os }}
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
 
     - name: Setup python
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python }}
 
@@ -39,7 +39,7 @@ jobs:
   Docker:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Docker build
       run: docker build --tag=kivy/buildozer .
     - name: Docker run