Bump actions/checkout from 3 to 4

.github/workflows/pypi.yml

@@ -22,7 +22,7 @@ jobs:
     name: Make SDist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
           submodules: true
@@ -44,7 +44,7 @@ jobs:
           - windows-2022
           - ubuntu-20.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/test.yml

@@ -22,7 +22,7 @@ jobs:
     outputs:
       changes: ${{ steps.changes.outputs.src }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - uses: dorny/paths-filter@v2
@@ -54,7 +54,7 @@ jobs:
       matrix:
         python-version: ["3.9", "3.10", "3.11"]
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
     - uses: actions/setup-python@v4
       with:
         python-version: ${{ matrix.python-version }}
@@ -116,7 +116,7 @@ jobs:
             float32: 0
             part: "tests/link/jax"
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           fetch-depth: 0
       - name: Set up Python ${{ matrix.python-version }}
@@ -187,7 +187,7 @@ jobs:
       strategy:
         fail-fast: false
       steps:
-        - uses: actions/checkout@v3
+        - uses: actions/checkout@v4
           with:
             fetch-depth: 0
         - name: Set up Python 3.9
@@ -244,7 +244,7 @@ jobs:
     needs: [changes, all-checks]
     if: ${{ needs.changes.outputs.changes == 'true' && needs.all-checks.result == 'success' }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Set up Python
         uses: actions/setup-python@v4