Support Diagnostic 8.2.3

What's Changed

• [ES] Add _nodes/shutdown API by @pickypg in #538
• Update commons-io from 2.6 to 2.11.0 by @pickypg in #539
• +frequent ES API queries by @stefnestor in #540
• Add ES ML Info API request by @stefnestor in #547
• +SSL Cert API Request by @stefnestor in #544
• +ilmExplainOnlyErrors by @stefnestor in #548
• Add geoip stats API request by @octavioranieri in #550
• Add leading / to elastic rest endpoints which were missing it. by @antbell in #551
• [Release] 8.2.3 by @pickypg in #552

New Contributors

• @stefnestor made their first contribution in #540
• @octavioranieri made their first contribution in #550

Full Changelog: v8.2.2...v8.2.3