Merge pull request #1409 from salmanmkc:upgrade-github-actions-node24

PiperOrigin-RevId: 851353009
Change-Id: I2d5b1082044b9e1787acac53a8d5e03485b8cfd3

Author: lanctot

.github/workflows/actions.yml

@@ -62,7 +62,7 @@ jobs:
       OPEN_SPIEL_BUILD_WITH_ORTOOLS_DOWNLOAD_URL:  ${{ matrix.OPEN_SPIEL_BUILD_WITH_ORTOOLS_DOWNLOAD_URL }}
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v6
     - uses: julia-actions/setup-julia@v2
       with:
         version: 1.8

.github/workflows/wheels.yml

@@ -103,9 +103,9 @@ jobs:
       CIBW_ENVIRONMENT: ${{ matrix.CIBW_ENVIRONMENT }}
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
-      - uses: actions/setup-python@v5
+      - uses: actions/setup-python@v6
 
       - name: Install
         run: |
@@ -157,7 +157,7 @@ jobs:
           source ./venv/bin/activate
           ./open_spiel/scripts/test_wheel.sh full `pwd` python
 
-      - uses: actions/upload-artifact@v4
+      - uses: actions/upload-artifact@v6
         with:
           name: artifact-${{ matrix.os }}-${{ matrix.NAME }}
           path: |