Bump actions/checkout from 3 to 4

Bumps [actions/checkout](https://github.com/actions/checkout) from 3 to 4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v3...v4)

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

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/cd.yml

@@ -94,7 +94,7 @@ jobs:
           fi
 
       - name: "Stage 0: Checkout repo"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
@@ -232,7 +232,7 @@ jobs:
           fi
 
       - name: "Stage 0: Checkout repo"
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 

.github/workflows/prune-harbor.yaml

@@ -21,7 +21,7 @@ jobs:
           - name: ovh2
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:

.github/workflows/terraform-deploy-aws-curvenote.yml

@@ -34,7 +34,7 @@ jobs:
       apply: ${{ steps.terraform-plan.outputs.apply }}
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2
@@ -111,7 +111,7 @@ jobs:
     if: needs.terraform-plan.outputs.apply == 'true'
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Configure AWS credentials
         uses: aws-actions/configure-aws-credentials@v2

.github/workflows/terraform.yml

@@ -15,7 +15,7 @@ jobs:
   terraform-pre-commit:
     runs-on: ubuntu-22.04
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"

.github/workflows/test-helm-template.yaml

@@ -43,7 +43,7 @@ jobs:
             k3s-channel: "v1.24"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"

.github/workflows/test-yamllint.yml

@@ -25,7 +25,7 @@ jobs:
     runs-on: ubuntu-20.04
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
           python-version-file: ".python-version"

.github/workflows/watch-dependencies.yaml

@@ -42,7 +42,7 @@ jobs:
             source_url: https://github.com/jupyterhub/repo2docker
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with:
@@ -172,7 +172,7 @@ jobs:
             github_repo: ""
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
         with: