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] <[email protected]>

.github/workflows/build.yml

@@ -13,11 +13,11 @@ jobs:
  build:
  runs-on: ubuntu-latest
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
  with:
  fetch-depth: 0 # required for jgit timestamp provider to work
  - name: checkout equinox.binaries
- uses: actions/checkout@v3
+ uses: actions/checkout@v4
  with:
  fetch-depth: 1 # only shallow here, we don't have jgit timestamps
  repository: eclipse-equinox/equinox.binaries
@@ -61,7 +61,7 @@ jobs:
  DEFAULT_OS_ARCH: x86_64
  DEFAULT_WS: win32
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
  with:
  fetch-depth: 1
  - name: Set up JDK 8
@@ -89,7 +89,7 @@ jobs:
  tck:
  runs-on: ubuntu-latest
  steps:
- - uses: actions/checkout@v3
+ - uses: actions/checkout@v4
  - name: Set up JDK 17
  uses: actions/setup-java@v3
  with: