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/anchor.yml

@@ -26,7 +26,7 @@ jobs:
       total_projects: ${{ steps.analyze.outputs.total_projects }}
       matrix: ${{ steps.matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
         id: changes
         if: github.event_name == 'pull_request'
@@ -103,7 +103,7 @@ jobs:
     outputs:
       failed_projects: ${{ steps.set-failed.outputs.failed_projects }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: heyAyushh/setup-anchor@v0.31
         with:
           anchor-version: 0.32.1
@@ -204,7 +204,7 @@ jobs:
     if: always()
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Create job summary
         run: |
           echo "## Anchor Workflow Summary" >> $GITHUB_STEP_SUMMARY

.github/workflows/rust.yml

@@ -22,7 +22,7 @@ jobs:
     name: Rustfmt
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           # Specific to dtolnay/rust-toolchain: Comma-separated string of additional components to install
@@ -35,7 +35,7 @@ jobs:
     name: Clippy
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dtolnay/rust-toolchain@stable
         with:
           components: clippy

.github/workflows/solana-native.yml

@@ -26,7 +26,7 @@ jobs:
       total_projects: ${{ steps.analyze.outputs.total_projects }}
       matrix: ${{ steps.matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - uses: dorny/paths-filter@v3
         id: changes
         if: github.event_name == 'pull_request'
@@ -102,7 +102,7 @@ jobs:
     outputs:
       failed_projects: ${{ steps.set-failed.outputs.failed_projects }}
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Use Node.js
         uses: actions/setup-node@v4
         with:
@@ -228,7 +228,7 @@ jobs:
     if: always()
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v4
+      - uses: actions/checkout@v6
       - name: Create job summary
         run: |
           echo "## Native Workflow Summary" >> $GITHUB_STEP_SUMMARY