Bump actions/checkout from 3 to 4 (#1340)

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_docs.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         with:
           persist-credentials: false
 

.github/workflows/release.yaml

@@ -22,7 +22,7 @@ jobs:
     name: Make sdist
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Conda
         uses: s-weigand/setup-conda@v1
@@ -82,7 +82,7 @@ jobs:
           vcpkg_logs: "c:\\vcpkg\\buildtrees\\**\\*.log"
 
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v4
 

.github/workflows/test_proj_latest.yaml

@@ -23,7 +23,7 @@ jobs:
       PROJ_DIR: ${{ github.workspace }}/proj_install
       PROJ_DATA: ${{ github.workspace }}/proj_install/share/proj
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
             python-version: 3.9

.github/workflows/tests.yaml

@@ -19,7 +19,7 @@ jobs:
   linting:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
       - uses: actions/setup-python@v4
         with:
             python-version: 3.9
@@ -49,7 +49,7 @@ jobs:
           - python-version: '3.9'
             proj-version: '9.0.1'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Update
         run: |
@@ -135,7 +135,7 @@ jobs:
             python-implementation: python
             proj-version: '9.1.1'
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - name: Setup Conda
         uses: s-weigand/setup-conda@v1