CI: update actions version (#14522)

I've noticed the warnings while doing
https://github.com/ipython/ipython/pull/14521

.github/workflows/docs.yml

@@ -10,9 +10,9 b' jobs:'
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.x
     - name: Install Graphviz
@@ -34,6 +34,6 b' jobs:'
       run: |
         coverage combine `find . -name .coverage\*` && coverage xml
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v2
+      uses: codecov/codecov-action@v4
       with:
         name: Docs

.github/workflows/downstream.yml

@@ -25,9 +25,9 b' jobs:'
             python-version: "3.10"
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Update Python installer

.github/workflows/mypy.yml

@@ -18,9 +18,9 b' jobs:'
         python-version: ["3.x"]
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
     - name: Install dependencies

.github/workflows/nightly-wheel-build.yml

@@ -13,9 +13,9 b' jobs:'
     if: github.event_name != 'pull_request' && (github.event_name != 'schedule' || github.repository_owner == 'ipython')
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - name: Set up Python
-        uses: actions/setup-python@v4
+        uses: actions/setup-python@v5
         with:
           python-version: "3.10"
           cache: pip

.github/workflows/python-package.yml

@@ -18,11 +18,11 b' jobs:'
     runs-on: ubuntu-latest
     timeout-minutes: 5
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 0
     - name: Set up Python
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: 3.x
     - name: Install dependencies

.github/workflows/test.yml

@@ -56,9 +56,9 b' jobs:'
             want-latest-entry-point-code: true
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - name: Set up Python ${{ matrix.python-version }}
-      uses: actions/setup-python@v4
+      uses: actions/setup-python@v5
       with:
         python-version: ${{ matrix.python-version }}
         cache: pip
@@ -109,7 +109,7 b' jobs:'
             ./report-*.json
 
     - name: Upload coverage to Codecov
-      uses: codecov/codecov-action@v3
+      uses: codecov/codecov-action@v4
       with:
          name: Test
          files: /home/runner/work/ipython/ipython/coverage.xml