build(deps): Bump actions/checkout from 6 to 7

Bumps [actions/checkout](https://github.com/actions/checkout) from 6 to 7.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v6...v7)

---
updated-dependencies:
- dependency-name: actions/checkout
  dependency-version: '7'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/release-appimage.yaml

@@ -14,7 +14,7 @@ jobs:
       packages: read
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Cache apt packages
         uses: awalsh128/cache-apt-pkgs-action@latest
@@ -60,7 +60,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Emscripten cache
         id: cache-emsdk
@@ -123,7 +123,7 @@ jobs:
       contents: write
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Setup Node.js
         uses: actions/setup-node@v6

.github/workflows/ros-rolling.yaml

@@ -20,7 +20,7 @@ jobs:
       # action-ros-ci checks the repo out to its own ros_ws/src, not to
       # ${{ github.workspace }}. Do an explicit checkout first so the
       # .repos file passed to vcs-repo-file-url below is reachable.
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - uses: ros-tooling/setup-ros@v0.7
         with:

.github/workflows/ubuntu-build.yaml

@@ -16,7 +16,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v6
+      - uses: actions/checkout@v7
 
       - name: Cache apt packages
         uses: awalsh128/cache-apt-pkgs-action@latest