CI: Bump actions/checkout from 4 to 5 (#1898)

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 5.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v4...v5)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '5'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

.github/workflows/benchmark.yml

@@ -11,11 +11,11 @@ jobs:
 
     steps:
       # check out pull request branch
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           path: pr
       # check out main branch (to compare performance)
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
         with:
           ref: main
           path: main

.github/workflows/docs.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-node@v4
     - run: npm ci --ignore-scripts
     - run: npm run docs

.github/workflows/sop-test-suite.yml

@@ -16,10 +16,10 @@ jobs:
         password: ${{ secrets.github_token }}
     steps:
       # check out repo for scripts
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       # check out pull request branch
       - name: Checkout openpgpjs-branch
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           path: openpgpjs-branch
       - name: Install openpgpjs-branch
@@ -30,7 +30,7 @@ jobs:
           OPENPGPJS_PATH: ${{ github.workspace }}/openpgpjs-branch
       # check out main branch
       - name: Checkout openpgpjs-main
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
         with:
           ref: main
           path: openpgpjs-main
@@ -72,7 +72,7 @@ jobs:
     needs: test-suite
     steps:
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v5
       - name: Download test results json artifact
         id: download-test-results
         uses: actions/download-artifact@v4

.github/workflows/tests.yml

@@ -11,7 +11,7 @@ jobs:
     name: Build
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v4
       - name: Check for cached folders
         id: cache-full
@@ -38,7 +38,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: build
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-node@v4
       with:
         node-version: ${{ matrix.node-version }}
@@ -67,7 +67,7 @@ jobs:
     runs-on: ${{ matrix.runner }}
 
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v4
 
       - name: Retrieve cached built folders
@@ -128,7 +128,7 @@ jobs:
       BROWSERSTACK_ACCESS_KEY: VjgBVRMxNVBj7SjJFiau
     
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v5
       - uses: actions/setup-node@v4
 
       - name: Generate self-signed HTTPS certificates for web-test-runner server
@@ -175,7 +175,7 @@ jobs:
     needs: build
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-node@v4
     - run: npm ci --ignore-scripts # TS
     - name: Retrieve cached folders
@@ -194,7 +194,7 @@ jobs:
     needs: build
 
     steps:
-    - uses: actions/checkout@v4
+    - uses: actions/checkout@v5
     - uses: actions/setup-node@v4
     - run: npm ci --ignore-scripts # linter
     - name: Retrieve cached folders