Github Actions doesn't work: UnsupportedClassVersionError

Just added the official Sonarqube Github actions flow to my Github repository. However, it throws the following error when executed.

ERROR: Error during SonarScanner execution

java.lang.UnsupportedClassVersionError: org/sonar/batch/bootstrapper/EnvironmentInformation has been compiled by a more recent version of the Java Runtime (class file version 61.0), this version of the Java Runtime only recognizes class file versions up to 55.0

INFO: Final Memory: 4M/20M

INFO: ------------------------------------------------------------------------

at java.base/java.lang.ClassLoader.defineClass1(Native Method)

at java.base/java.lang.ClassLoader.defineClass(ClassLoader.java:1017)

at java.base/java.security.SecureClassLoader.defineClass(SecureClassLoader.java:174)

at java.base/java.net.URLClassLoader.defineClass(URLClassLoader.java:555)

at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:458)

at java.base/java.net.URLClassLoader$1.run(URLClassLoader.java:452)

at java.base/java.security.AccessController.doPrivileged(Native Method)

at java.base/java.net.URLClassLoader.findClass(URLClassLoader.java:451)

at org.sonarsource.scanner.api.internal.IsolatedClassloader.loadClass(IsolatedClassloader.java:82)

at java.base/java.lang.ClassLoader.loadClass(ClassLoader.java:522)

at org.sonarsource.scanner.api.internal.batch.DefaultBatchFactory.createBatch(DefaultBatchFactory.java:32)

at org.sonarsource.scanner.api.internal.batch.BatchIsolatedLauncher.execute(BatchIsolatedLauncher.java:46)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.base/java.lang.reflect.Method.invoke(Method.java:566)

at org.sonarsource.scanner.api.internal.IsolatedLauncherProxy.invoke(IsolatedLauncherProxy.java:60)

at com.sun.proxy.$Proxy0.execute(Unknown Source)

at org.sonarsource.scanner.api.EmbeddedScanner.doExecute(EmbeddedScanner.java:189)

at org.sonarsource.scanner.api.EmbeddedScanner.execute(EmbeddedScanner.java:138)

at org.sonarsource.scanner.cli.Main.execute(Main.java:112)

at org.sonarsource.scanner.cli.Main.execute(Main.java:75)

at org.sonarsource.scanner.cli.Main.main(Main.java:61)

Hey there.

Can you share your GitHub Actions YML?