Update GitHub Artifact Actions

Author: renovate[bot]

.github/workflows/benchmark.yml

@@ -17,7 +17,7 @@ jobs:
         python-version: '3.13'
     - run: pip install . matplotlib pycryptodome rc4
     - run: nice -19 python benchmark.py -o benchmark.svg
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: benchmark
         path: benchmark.svg

.github/workflows/release.yml

@@ -20,7 +20,7 @@ jobs:
         python-version: '3.13'
     - run: pip install setuptools
     - run: python setup.py sdist --verbose
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: arc4-sdist
         path: dist/arc4-*.tar.gz
@@ -47,7 +47,7 @@ jobs:
         python-version: "${{ matrix.python-version }}"
     - run: pip install setuptools wheel
     - run: python setup.py bdist_wheel
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: arc4-wheels-${{ matrix.os }}-${{ matrix.python-version }}
         path: dist/*whl
@@ -71,7 +71,7 @@ jobs:
     - run: pip install setuptools
     - run: /opt/python/${{ matrix.python-version }}/bin/pip wheel .
     - run: auditwheel repair arc4-*-linux*.whl --plat manylinux_2_28_x86_64
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: arc4-wheels-manylinux-${{ matrix.python-version }}
         path: wheelhouse/arc4-*-manylinux*.whl
@@ -87,7 +87,7 @@ jobs:
       with:
         python-version: '3.13'
     - run: pip install twine
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v7
       with:
         pattern: arc4-*
         merge-multiple: true

.github/workflows/test.yml

@@ -30,7 +30,7 @@ jobs:
       run: |
         lcov --capture --directory . --output-file coverage.info --no-external
         qlty coverage transform coverage.info --output "coverage.${{ matrix.python-version }}.jsonl"
-    - uses: actions/upload-artifact@v4
+    - uses: actions/upload-artifact@v6
       with:
         name: coverages-${{ matrix.python-version }}
         path: coverage.${{ matrix.python-version }}.jsonl
@@ -39,7 +39,7 @@ jobs:
     needs: test
     steps:
     - uses: actions/checkout@v5
-    - uses: actions/download-artifact@v5
+    - uses: actions/download-artifact@v7
       with:
         pattern: coverages-*
         merge-multiple: true