Update OS upstream version and add release notes for 1.0.0.0 release

[sruti1312]

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Update OS upstream version and add release notes for 1.0.0.0 release

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• New functionality includes testing.
  • All tests pass
• New functionality has been documented.
  • New functionality has javadoc added
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[khushbr]

The build is failing at updateShas for RCA but this is expected since the RCA change is not in.

Execution failed for task ':updateShas'.
> Could not resolve all files for configuration ':runtimeClasspath'.
   > Could not find org.opensearch:performanceanalyzer-rca:1.0.0.0.
     Searched in the following locations:
       - https://jcenter.bintray.com/org/opensearch/performanceanalyzer-rca/1.0.0.0/performanceanalyzer-rca-1.0.0.0.pom
       - https://repo.maven.apache.org/maven2/org/opensearch/performanceanalyzer-rca/1.0.0.0/performanceanalyzer-rca-1.0.0.0.pom
       - file:/home/runner/.m2/repository/org/opensearch/performanceanalyzer-rca/1.0.0.0/performanceanalyzer-rca-1.0.0.0.pom
       - https://plugins.gradle.org/m2/org/opensearch/performanceanalyzer-rca/1.0.0.0/performanceanalyzer-rca-1.0.0.0.pom
     Required by:
         project :