Bump actions/checkout from 5 to 6

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] <[email protected]>

Author: dependabot[bot]

.github/workflows/changesets.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       # Checkout this repository
       - name: Checkout Repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           # This makes Actions fetch all Git history so that Changesets can generate changelogs with the correct commits
           fetch-depth: 0

.github/workflows/contracts.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 
@@ -33,7 +33,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/examples.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/golangci-lint.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Install Nix
@@ -33,7 +33,7 @@ jobs:
     needs: [golangci-lint-version]
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Install Nix
@@ -61,7 +61,7 @@ jobs:
     needs: [golangci-lint-version]
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Setup GitHub Token
@@ -102,7 +102,7 @@ jobs:
       - name: Free Disk Space
         uses: smartcontractkit/.github/actions/free-disk-space@free-disk-space/v1
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Setup GitHub Token

.github/workflows/integration-tests-publish.yml

@@ -19,7 +19,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Setup GitHub Token

.github/workflows/integration-tests-smoke.yml

@@ -76,7 +76,7 @@ jobs:
           CL_REF: ${{ github.event.inputs.cl_branch_ref }}
       - name: Checkout the repo
         if: steps.check-image.outputs.exists == 'false'
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           repository: smartcontractkit/chainlink
           ref: ${{ env.CUSTOM_CORE_REF }}
@@ -148,7 +148,7 @@ jobs:
           aws-lambda-url: ${{ secrets.GATI_RELENG_LAMBDA_URL }}
           aws-region: ${{ secrets.QA_AWS_REGION }}
       - name: Checkout the repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.sha }}
           persist-credentials: false
@@ -174,7 +174,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Install Nix

.github/workflows/integration-tests-soak.yml

@@ -41,7 +41,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout the repo
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Install Nix

.github/workflows/integration_gauntlet.yml

@@ -14,7 +14,7 @@ jobs:
       CI: true
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v5
+      - uses: actions/checkout@v6
         with:
           persist-credentials: false
       - name: Install Nix
@@ -41,7 +41,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/lint.yml

@@ -13,7 +13,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout sources
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false
 

.github/workflows/monitoring-build-push-ecr.yml

@@ -17,7 +17,7 @@ jobs:
       contents: read
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v5
+        uses: actions/checkout@v6
         with:
           persist-credentials: false