Update CI versions

.github/workflows/ci.yml

@@ -10,9 +10,9 @@ jobs:
   check:
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - name: Install dependencies
@@ -27,20 +27,18 @@ jobs:
     strategy:
       matrix:
         python-version:
-          - "3.8"
           - "3.9"
           - "3.10"
           - "3.11"
           - "3.12"
-          - "3.13-dev"
+          - "3.13"
           ## LibCST fails to install under PyPy due to PyO3 compilation error?
-          # - "pypy-3.8"
           # - "pypy-3.9"
       fail-fast: false
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v2
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies
@@ -53,9 +51,9 @@ jobs:
     needs: [check, test]
     if: github.repository == 'Zac-HD/shed' &&  github.ref == 'refs/heads/master'
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@v4
     - name: Set up Python 3.9
-      uses: actions/setup-python@v1
+      uses: actions/setup-python@v5
       with:
         python-version: 3.9
     - name: Install tools