Bump actions/checkout from 5 to 6 (#20)

Bumps [actions/checkout](https://github.com/actions/checkout) from 5 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v5...v6)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '6'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

---------

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Brendan <2bndy5@gmail.com>

Author: dependabot[bot]

.github/workflows/build.yml

@@ -14,7 +14,9 @@ jobs:
         with:
           python-version: "3.x"
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Build wheel
         run: pip wheel -w dist --no-deps .
@@ -36,7 +38,9 @@ jobs:
         with:
           python-version: "3.x"
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Install pre-commit and deps
         run: pip install pre-commit -r requirements.txt
@@ -59,16 +63,19 @@ jobs:
           tr '_' '-'
           ) >> $GITHUB_OUTPUT
 
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Set up Python 3.x
         uses: actions/setup-python@v6
         with:
           python-version: "3.11"
 
       - name: Checkout tools repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
+          persist-credentials: false
           repository: adafruit/actions-ci-circuitpython-libs
           path: actions-ci
 
@@ -88,7 +95,9 @@ jobs:
   build-docs:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
+        with:
+          persist-credentials: false
 
       - name: Set up Python 3.x
         uses: actions/setup-python@v6

.github/workflows/release.yml

@@ -24,13 +24,15 @@ jobs:
           python-version: "3.x"
 
       - name: Checkout Current Repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
+          persist-credentials: false
           fetch-depth: 0
 
       - name: Checkout tools repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
+          persist-credentials: false
           repository: adafruit/actions-ci-circuitpython-libs
           path: actions-ci
 
@@ -60,8 +62,9 @@ jobs:
     permissions:
       id-token: write
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
+          persist-credentials: false
           fetch-depth: 0
 
       - uses: actions/setup-python@v6