textproc/opensearch: Update to 3.2.0

And also:

• Add opensearch_flags for temporary startup parameters
• Add opensearch_env for setting environment variables
• Remove AVX2 check
• Bump OpenJDK to upstream supported version 24
• Regenerate distinfo for both amd64 and aarch64 distfiles

Release notes: https://github.com/opensearch-project/OpenSearch/releases/tag/3.2.0
Differential review: https://reviews.freebsd.org/D52392