docs: add plugin dependencies report for v3.4.0

[tkykenmt]

Summary

This PR adds documentation for the Plugin Dependencies feature in OpenSearch v3.4.0.

Changes

PR #19939 extends range semver support to the dependencies field in plugin-descriptor.properties. Previously, range version notation (e.g., [2.0.0, 3.0.0)) only worked for the opensearch.version field. Now plugins can specify compatible OpenSearch version ranges in their dependencies.

Reports Created

• Release report: docs/releases/v3.4.0/features/opensearch/plugin-dependencies.md
• Feature report: docs/features/opensearch/plugin-dependencies.md

Key Changes in v3.4.0

• SemverRange.RANGE_PATTERN made public for use in PluginInfo
• PluginInfo.readFromProperties() now detects and parses range expressions in dependencies
• Plugins can now use range notation like dependencies={ opensearch: "[2.0.0, 3.0.0)" }

Related PRs

• opensearch-project/OpenSearch#19939: Add RangeSemver for dependencies in plugin-descriptor.properties
• opensearch-project/OpenSearch#18557: Added support for range version support in semver

Related Issues

• opensearch-project/OpenSearch#1707: Cannot install old patch version of plugins on newer OpenSearch builds
• opensearch-project/OpenSearch#18554: Add range support in SemVer

Closes #1704