Bump actions/checkout from v2.3.2 to v2.3.3 (#120)

Bumps [actions/checkout](https://github.com/actions/checkout) from v2.3.2 to v2.3.3.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](actions/checkout@v2.3.2...a81bbbf)

Signed-off-by: dependabot[bot] <[email protected]>

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -16,7 +16,7 @@ jobs:
         architecture: [ 'x64' ]
     name: Build with JDK ${{ matrix.java }} on ${{ matrix.architecture }}
     steps:
-      - uses: actions/[email protected].2
+      - uses: actions/[email protected].3
       - name: Setup JDK
         uses: actions/setup-java@v1
         with: