Bump actions/checkout from 3 to 4 (#525)

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

.github/workflows/Build.yml

@@ -23,7 +23,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set Job Environment Variables
       run: |
@@ -69,7 +69,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     - name: Set Job Environment Variables
       run: |

.github/workflows/CondaLock.yml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.PANGEOBOT_TOKEN }}
           # These lines are critical, otherwise Pangeo-bot pushes changes directly to master from PRs!
@@ -61,7 +61,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           token: ${{ secrets.PANGEOBOT_TOKEN }}
           # These lines are critical, otherwise Pangeo-bot pushes changes directly to master from PRs!

.github/workflows/PR.yml

@@ -12,7 +12,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Add Condalock Comment
         uses: peter-evans/create-or-update-comment@v2

.github/workflows/Publish.yml

@@ -21,7 +21,7 @@ jobs:
     runs-on: ubuntu-latest
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # https://github.com/actions/runner-images/issues/2840#issuecomment-790492173
     - name: Free up disk space

.github/workflows/Test.yml

@@ -31,7 +31,7 @@ jobs:
 
     steps:
     - name: Checkout Repository
-      uses: actions/checkout@v3
+      uses: actions/checkout@v4
 
     # https://github.com/actions/runner-images/issues/2840#issuecomment-790492173
     - name: Free up disk space

.github/workflows/WatchCondaForge.yml

@@ -14,7 +14,7 @@ jobs:
 
     steps:
       - name: Checkout Repository
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Get Latest pangeo-notebook Metapackage Version
         id: latest_version