ci(deps): bump actions/checkout from 4 to 6

Bumps [actions/checkout](https://github.com/actions/checkout) from 4 to 6.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v4...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>

Author: dependabot[bot]

.github/workflows/check-readmes.yml

@@ -13,7 +13,7 @@ jobs:
   validate-comment-help:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Run comment-based help check
         run: pwsh -NoProfile -File .\scripts\checks\check-comment-help.ps1
         shell: pwsh

.github/workflows/ci-powershell.yml

@@ -18,7 +18,7 @@ jobs:
         pwsh: [7.2, 7.4]
     runs-on: ${{ matrix.os }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Install PSScriptAnalyzer
         run: pwsh -NoProfile -Command "Install-Module -Name PSScriptAnalyzer -Scope CurrentUser -Force"
       - name: Validate profile (lint + idempotency)

.github/workflows/commit-message-check.yml

@@ -11,7 +11,7 @@ jobs:
   commit-message-check:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
 
       - name: Run commit message validation
         id: validate

.github/workflows/dependency-validation.yml

@@ -16,7 +16,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
 
       - name: Validate Dependencies

.github/workflows/dependency-vulnerability-scan.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
 
       - name: Check for Module Updates
@@ -85,7 +85,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
       - name: Setup pnpm
         uses: pnpm/action-setup@v4

.github/workflows/markdown.yml

@@ -13,7 +13,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Setup pnpm
         uses: pnpm/action-setup@v4
         with:

.github/workflows/metrics-collection.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
 
       - name: Collect Code Metrics
@@ -122,7 +122,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v6
 
 
       - name: Download Metrics Artifacts

.github/workflows/performance.yml

@@ -14,7 +14,7 @@ jobs:
   benchmark:
     runs-on: windows-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Run Performance Benchmark
         run: pwsh -NoProfile -File scripts/utils/metrics/benchmark-startup.ps1 -Iterations 3
       - name: Update Performance Baseline

.github/workflows/psscriptanalyzer.yml

@@ -12,7 +12,7 @@ jobs:
   lint:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Ensure pwsh available
         run: pwsh -c "$PSVersionTable"
       - name: Install PSScriptAnalyzer

.github/workflows/release.yml

@@ -15,7 +15,7 @@ jobs:
       issues: write
       pull-requests: write
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
         with:
           fetch-depth: 0
       - name: Setup Node.js