Use OpenJDK version of JPackage

Author: AustinShalit

.github/workflows/ci.yml

@@ -38,11 +38,11 @@ jobs:
       - uses: actions/checkout@v2
         with:
           fetch-depth: 0
-      - uses: joschi/setup-jdk@v2
+      - uses: actions/setup-java@v1
         id: setup-java-14
         with:
           java-version: 14
-          architecture: ${{ matrix.architecture }}
+          java-package: jdk+fx
       - uses: joschi/setup-jdk@v2
         with:
           java-version: 11