ci: bump actions/checkout from 6 to 7

.github/workflows/codeql.yml

@@ -29,7 +29,7 @@ jobs:
 
     steps:
       - name: Checkout
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v4

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
 
     steps:
       - name: Checkout (full history for changelog)
-        uses: actions/checkout@v6
+        uses: actions/checkout@v7
         with:
           fetch-depth: 0
 

.github/workflows/security.yml

@@ -25,7 +25,7 @@ jobs:
     name: bandit (python SAST)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -45,7 +45,7 @@ jobs:
     name: pip-audit (dependency CVEs)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python
         uses: actions/setup-python@v6
@@ -68,7 +68,7 @@ jobs:
     name: trufflehog (secret detection)
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
         with:
           # Full history so the action can scan every commit, not just HEAD.
           fetch-depth: 0

.github/workflows/test.yml

@@ -15,7 +15,7 @@ jobs:
       fail-fast: false
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Set up Python ${{ matrix.python-version }}
         uses: actions/setup-python@v6
@@ -34,7 +34,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
       - uses: actions/setup-python@v6
         with:
           python-version: "3.12"