Bump actions/checkout from 3 to 4 (#467)

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Mark Towers <mark.m.towers@gmail.com>

.github/workflows/build-docs-dev.yml

@@ -11,7 +11,7 @@ jobs:
     env:
       SPHINX_GITHUB_CHANGELOG_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v5
         with:

.github/workflows/build-docs-version.yml

@@ -12,7 +12,7 @@ jobs:
     env:
       SPHINX_GITHUB_CHANGELOG_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
       - uses: actions/setup-python@v5
         with:

.github/workflows/manual-build-docs-version.yml

@@ -21,10 +21,10 @@ jobs:
     env:
       SPHINX_GITHUB_CHANGELOG_TOKEN: ${{ secrets.GITHUB_TOKEN }}
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: inputs.commit == ''
 
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
         if: inputs.commit != ''
         with:
           ref: ${{ inputs.commit }}