Update upload-artifact

Author: oscarbenjamin

.github/workflows/tests.yml

@@ -15,10 +15,10 @@ jobs:
 
     steps:
       - name: Check out the repository
-        uses: actions/checkout@v4.1.1
+        uses: "actions/checkout@v4"
 
       - name: Set up Python ${{ matrix.python-version }}
-        uses: actions/setup-python@v5.0.0
+        uses: "actions/setup-python@v5"
         with:
           python-version: ${{ matrix.python-version }}
 
@@ -33,13 +33,13 @@ jobs:
           ./checks.sh
 
       - name: Upload coverage data
-        uses: "actions/upload-artifact@v3.1.3"
+        uses: "actions/upload-artifact@v4"
         with:
-          name: coverage-data
+          name: coverage-data-${{ matrix.python-version }}
           path: ".coverage"
 
       - name: Upload documentation
-        uses: "actions/upload-artifact@v3.1.3"
+        uses: "actions/upload-artifact@v4"
         with:
-          name: docs
+          name: docs-${{ matrix.python-version }}
           path: docs/_build