Merge pull request #6091 from KomachiSion/develop-fix-ci

Fix github CI

.github/workflows/ci.yml

@@ -14,7 +14,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [linux-latest]
+        os: [ubuntu-latest]
         java: [8, 8.0.192, 11, 11.0.9]
     steps:
       - name: Cache Maven Repos
@@ -24,7 +24,6 @@ jobs:
           key: ${{ runner.os }}-maven-${{ hashFiles('**/pom.xml') }}
           restore-keys: |
             ${{ runner.os }}-maven-
-        run: echo 'MAVEN_OPTS="$MAVEN_OPTS -Xmx1024m -XX:MaxPermSize=512m -XX:+BytecodeVerificationLocal"' >> ~/.mavenrc
       - uses: actions/checkout@v2
       - name: Set up JDK 8
         uses: actions/setup-java@v2