Add Release Notes for 2.18.0.0

[Vikasht34]

Description

[Describe what this change achieves]

Related Issues

Resolves #[Issue number to be closed when this PR is merged]

Check List

• New functionality includes testing.
• New functionality has been documented.
• API changes companion pull request created.
• Commits are signed per the DCO using --signoff.
• Public documentation issue/PR created.

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.
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[naveentatikonda]

Exception from logs

| Exception in thread "main" java.lang.IllegalStateException: opensearch-job-scheduler requires Java 21:, your system: 17.0.13+11-LTS
| 	at org.opensearch.bootstrap.JarHell.checkJavaVersion(JarHell.java:278)
| 	at org.opensearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:403)
| 	at org.opensearch.plugins.InstallPluginCommand.loadPluginInfo(InstallPluginCommand.java:819)
| 	at org.opensearch.plugins.InstallPluginCommand.installPlugin(InstallPluginCommand.java:874)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:276)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:250)
| 	at org.opensearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.MultiCommand.execute(MultiCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.Command.main(Command.java:101)
| 	at org.opensearch.plugins.PluginCli.main(PluginCli.java:66)

[Vikasht34]

Exception from logs

| Exception in thread "main" java.lang.IllegalStateException: opensearch-job-scheduler requires Java 21:, your system: 17.0.13+11-LTS
| 	at org.opensearch.bootstrap.JarHell.checkJavaVersion(JarHell.java:278)
| 	at org.opensearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:403)
| 	at org.opensearch.plugins.InstallPluginCommand.loadPluginInfo(InstallPluginCommand.java:819)
| 	at org.opensearch.plugins.InstallPluginCommand.installPlugin(InstallPluginCommand.java:874)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:276)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:250)
| 	at org.opensearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.MultiCommand.execute(MultiCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.Command.main(Command.java:101)
| 	at org.opensearch.plugins.PluginCli.main(PluginCli.java:66)

I was wondering why, It does not has to do anything with this .

[Vikasht34]

Exception from logs

| Exception in thread "main" java.lang.IllegalStateException: opensearch-job-scheduler requires Java 21:, your system: 17.0.13+11-LTS
| 	at org.opensearch.bootstrap.JarHell.checkJavaVersion(JarHell.java:278)
| 	at org.opensearch.plugins.PluginsService.verifyCompatibility(PluginsService.java:403)
| 	at org.opensearch.plugins.InstallPluginCommand.loadPluginInfo(InstallPluginCommand.java:819)
| 	at org.opensearch.plugins.InstallPluginCommand.installPlugin(InstallPluginCommand.java:874)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:276)
| 	at org.opensearch.plugins.InstallPluginCommand.execute(InstallPluginCommand.java:250)
| 	at org.opensearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.MultiCommand.execute(MultiCommand.java:104)
| 	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
| 	at org.opensearch.cli.Command.main(Command.java:101)
| 	at org.opensearch.plugins.PluginCli.main(PluginCli.java:66)

opensearch-job-scheduler-3.0.0.0-SNAPSHOT.zip this is on JDK 21 but workflow runs on 11 , 17 and 21 , so it's failing for first two , It does not have to do any thing with this PR , this can be taken separate.