chore: bump CI actions to Node 24-targeting versions

actions/checkout v4→v5, actions/setup-python v5→v6, actions/setup-node v4→v5
Deadline: GitHub deprecates Node 20 runners 2026-06-02

Author: NessieCanCode

.github/workflows/ci.yml

@@ -10,17 +10,17 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Install Python lint deps
         run: pip install flake8==7.1.1
       - name: Python lint
         run: flake8 src test --max-line-length=150 --exclude=src/vendor --ignore=E501,W503,E402,E722 || true
       - name: Set up Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '18'
       - name: JavaScript lint
@@ -32,17 +32,17 @@ jobs:
   unit-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Python unit tests
         run: |
           pip install pytest==8.3.3 reportlab pymysql >/dev/null 2>&1
           PYTHONPATH=src python -m pytest test/unit/ -v --tb=short || true
       - name: Set up Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '18'
       - name: JS tests
@@ -55,13 +55,13 @@ jobs:
   integration-tests:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Set up Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '18'
       - name: Install Python deps
@@ -82,8 +82,8 @@ jobs:
           - 3306:3306
         options: --health-cmd="mysqladmin ping" --health-interval=10s --health-timeout=5s --health-retries=5
     steps:
-      - uses: actions/checkout@v4
-      - uses: actions/setup-python@v5
+      - uses: actions/checkout@v5
+      - uses: actions/setup-python@v6
         with:
           python-version: "3.11"
       - name: Install deps
@@ -114,9 +114,9 @@ jobs:
   security-scan:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Install Bandit

.github/workflows/release.yml

@@ -13,13 +13,13 @@ jobs:
     permissions:
       contents: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - name: Set up Node
-        uses: actions/setup-node@v4
+        uses: actions/setup-node@v5
         with:
           node-version: '18'
       - name: Set up Python
-        uses: actions/setup-python@v5
+        uses: actions/setup-python@v6
         with:
           python-version: '3.x'
       - name: Install deps