Bump andstor/file-existence-action from 2 to 3 (#36)

Bumps [andstor/file-existence-action](https://github.com/andstor/file-existence-action) from 2 to 3.
- [Release notes](https://github.com/andstor/file-existence-action/releases)
- [Commits](andstor/file-existence-action@v2...v3)

---
updated-dependencies:
- dependency-name: andstor/file-existence-action
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/1-initialize-javascript-project.yml

@@ -60,7 +60,7 @@ jobs:
  # Check if NPM package.json exists in the expected location.
  - name: Check file existence
  id: check_files
- uses: andstor/file-existence-action@v2
+ uses: andstor/file-existence-action@v3
  with:
  files: ".github/actions/joke-action/package.json"
 

.github/workflows/2-configure-your-action.yml

@@ -60,7 +60,7 @@ jobs:
  # Check if NPM package.json exists in the expected location.
  - name: Check file existence
  id: check_files
- uses: andstor/file-existence-action@v2
+ uses: andstor/file-existence-action@v3
  with:
  files: ".github/actions/joke-action/action.yml"
 

.github/workflows/4-create-javascript-files-for-action.yml

@@ -59,7 +59,7 @@ jobs:
  # Check if action JavaScript exists in the expected location.
  - name: Check file existence
  id: check_files
- uses: andstor/file-existence-action@v2
+ uses: andstor/file-existence-action@v3
  with:
  files: ".github/actions/joke-action/joke.js, .github/actions/joke-action/main.js"