CI: update action versions

Author: bcbnz

.github/workflows/ci-tests.yml

@@ -21,10 +21,10 @@ jobs:
         matplotlib-version: [ "3.9.4", "3.10.9" ]
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: "${{ matrix.python-version }}"
           architecture: x64
@@ -42,7 +42,7 @@ jobs:
         run: pytest --cov-report=xml
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           files: coverage.xml
           flags: "Matplotlib-${{ matrix.matplotlib-version}}-Python-${{ matrix.python-version }}"

.github/workflows/lint.yml

@@ -14,17 +14,17 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
         id: setup
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.x
           architecture: x64
 
       - name: Lint
-        uses: astral-sh/ruff-action@v3
+        uses: astral-sh/ruff-action@v4
 
       - name: Check formatting
         if: always()

.github/workflows/matplotlib-main.yml

@@ -14,10 +14,10 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
 
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: 3.14
           architecture: x64
@@ -41,7 +41,7 @@ jobs:
         run: pytest --cov-report=xml
 
       - name: Upload coverage report
-        uses: codecov/codecov-action@v5
+        uses: codecov/codecov-action@v6
         with:
           files: coverage.xml
           name: "Matplob main branch ${{ steps.mpl-main-version.outputs.matplotlib-version }}"