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] <support@github.com>

.github/workflows/builds.yaml

@@ -52,7 +52,7 @@ jobs:
             gcc meson glib2-devel
 
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         run: |
@@ -91,7 +91,7 @@ jobs:
             gcc meson glib2-devel libasan libubsan
 
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Setup
         run: |

.github/workflows/codeql.yaml

@@ -42,7 +42,7 @@ jobs:
             gcc meson glib2-devel
 
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Initialize CodeQL
         uses: github/codeql-action/init@v2

.github/workflows/markdownlint.yaml

@@ -29,7 +29,7 @@ jobs:
           cache: npm
 
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         run: |

.github/workflows/prettier.yaml

@@ -29,7 +29,7 @@ jobs:
           cache: npm
 
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Install dependencies
         run: |

.github/workflows/reuse.yaml

@@ -21,7 +21,7 @@ jobs:
 
     steps:
       - name: Checkout libmerr
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
 
       - name: Lint
         uses: fsfe/reuse-action@v2