CI Workflows can't run with JDK 8 or 17

[davidcui1225]

Is your feature request related to a problem? Please describe.
For the release campaign item opensearch-project/opensearch-plugins#64, reports-scheduler workflow cannot run with JDK 8 or 17, currently only 11 and 14 are working.

JDK 17 error: Unsupported class file major version 61
JDK 8 error:

2022-03-01T18:58:41.3044292Z A problem occurred evaluating root project 'opensearch-observability'.
2022-03-01T18:58:41.3044671Z > Failed to apply plugin 'opensearch.opensearchplugin'.
2022-03-01T18:58:41.3045051Z    > Could not create plugin of type 'PluginBuildPlugin'.
2022-03-01T18:58:41.3045347Z       > Could not generate a decorated class for type PluginBuildPlugin.
2022-03-01T18:58:41.3045826Z          > org/opensearch/gradle/plugin/PluginPropertiesExtension has been compiled by a more recent version of the Java Runtime (class file version 54.0), this version of the Java Runtime only recognizes class file versions up to 52.0

Related: #230

[zhongnansu]

#301 #302 seem to address the same issue, can we close this one? @davidcui1225

[davidcui1225]

Yep, closing this one.