TheengsDecoder v1.5.7

What's Changed

• [DOCS] model_id corrections by @DigiH in #377
• [DOCS] Start row indexing in devices table from 1 by @koenvervloesem in #378
• [DOCS] Govee H5074 doc correction by @DigiH in #379
• Add script to check JSON strings in decoders by @koenvervloesem in #380
• [DOC] Explanation of check_decoder script by @koenvervloesem in #381
• Show helpful message on checking invalid JSON by @koenvervloesem in #382
• Fix memory leak by @DigiH in #385

Full Changelog: v1.5.5...v1.5.7