github actions: java17 is still early access

Author: TheSnoozer

.github/workflows/default-tests.yml

@@ -32,15 +32,17 @@ jobs:
         include:
           - java_version: '16'
             java_allow_illegal_access: true
-          - java_version: '17'
+          - java_version: '17-ea'
             java_allow_illegal_access: true
 
     steps:
       - uses: actions/checkout@v1
       - name: Set up JDK ${{ matrix.java_version }}
-        uses: actions/setup-java@v1
+        uses: actions/setup-java@v2
         with:
+          distribution: 'zulu'
           java-version: ${{ matrix.java_version }}
+          java-package: jdk
       - name: Cache local Maven repository
         uses: actions/cache@v1
         with: