Bump actions/setup-java from 1 to 2.1.0

Bumps [actions/setup-java](https://github.com/actions/setup-java) from 1 to 2.1.0.
- [Release notes](https://github.com/actions/setup-java/releases)
- [Commits](actions/setup-java@v1...v2.1.0)

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

.github/workflows/bintray_release_version.yml

@@ -16,7 +16,7 @@ jobs:
         steps:
             - uses: actions/checkout@v2
             - name: Set up Java 11
-              uses: actions/setup-java@v1
+              uses: actions/setup-java@v2.1.0
               with:
                   java-version: 11
                   server-id: bintray

.github/workflows/maven_build.yml

@@ -24,7 +24,7 @@ jobs:
         steps:
             - uses: actions/checkout@v2
             - name: Set up JDK
-              uses: actions/setup-java@v1
+              uses: actions/setup-java@v2.1.0
               with:
                   java-version: ${{ matrix.java }}
                   architecture: ${{ matrix.arch }}