Update ci to remove py3.9 support and use latest actions versions of …

…setup-python and checkout

.github/workflows/test.yml

@@ -14,33 +14,22 @@ jobs:
     strategy:
       matrix:
         os: [macos-latest, ubuntu-latest, windows-latest]
-        python-version: ['3.9', '3.10', '3.11']
+        python-version: ['3.10', '3.11']
       fail-fast: false
 
     steps:
 
     - name: Obtain SasData source from git
-      uses: actions/checkout@v1
+      uses: actions/checkout@v4
 
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
-
-    ### Caching of pip downloads and local wheel builds
-    - name: Get pip cache dir
-      id: pip-cache
-      run: |
-        echo "name={$(pip cache dir)}" >> $GITHUB_OUTPUT
-
-    - name: Obtain pip cache (Linux)
-      uses: actions/cache@v2
-      with:
-        path: ${{ steps.pip-cache.outputs.name }}
-        key: ${{ runner.os }}-pip-${{ matrix.python-version }}-${{ hashFiles('**/test.yml') }}
-        restore-keys: |
-          ${{ runner.os }}-pip-${{ matrix.python-version }}-
-          ${{ runner.os }}-pip-
+        cache: 'pip'
+        cache-dependency-path: |
+          **/ci.yml
+          **/requirements*.txt
 
     ### Installation of build-dependencies