Bump actions/checkout from 2 to 3

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2...v3)

---
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/ci-docker-wormhole.yml

@@ -8,7 +8,7 @@ jobs:
   in-docker_test:
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: Build with Gradle
         run: |
           docker run -i --rm \

.github/workflows/ci-examples.yml

@@ -16,7 +16,7 @@ jobs:
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           java-version: '8.0.302'
@@ -44,7 +44,7 @@ jobs:
       matrix: ${{ fromJson(needs.find_gradle_jobs.outputs.matrix) }}
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           java-version: '8.0.302'

.github/workflows/ci-rootless.yml

@@ -16,7 +16,7 @@ jobs:
     env:
       XDG_RUNTIME_DIR: ${{ matrix.XDG_RUNTIME_DIR }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - name: debug
         run: id -u; whoami
       - name: uninstall rootful Docker

.github/workflows/ci.yml

@@ -16,15 +16,15 @@ jobs:
     outputs:
       thundra_agent_testrun_id: ${{ steps.thundra_test_initializer.outputs.thundra_agent_testrun_id }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - id: thundra_test_initializer
         uses: thundra-io/thundra-test-init-action@v1
   find_gradle_jobs:
     runs-on: ubuntu-18.04
     outputs:
       matrix: ${{ steps.set-matrix.outputs.matrix }}
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           java-version: '8.0.302'
@@ -50,7 +50,7 @@ jobs:
       matrix: ${{ fromJson(needs.find_gradle_jobs.outputs.matrix) }}
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           java-version: '8.0.302'

.github/workflows/release.yml

@@ -12,7 +12,7 @@ jobs:
   release:
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
       - uses: actions/setup-java@v3
         with:
           java-version: '8.0.302'

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

@@ -9,7 +9,7 @@ jobs:
     if: github.repository == 'testcontainers/testcontainers-java'
     runs-on: ubuntu-18.04
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
         with:
           ref: master
       - name: Update latest_version property in mkdocs.yml

.github/workflows/update-gradle-wrapper.yml

@@ -10,7 +10,7 @@ jobs:
     runs-on: ubuntu-latest
 
     steps:
-      - uses: actions/checkout@v2
+      - uses: actions/checkout@v3
 
       - name: Update Gradle Wrapper
         uses: gradle-update/update-gradle-wrapper-action@5b865a8b4d09fdf6afaaa20397ba68455bb48f0d # v1.0.13