wolfMQTT v1.19.0 (22MAR2024)

v1.19.0 (3/22/2024)
Release 1.19.0 has been developed according to wolfSSL's development and QA process (see link below) and successfully passed the quality criteria.
https://www.wolfssl.com/about/wolfssl-software-development-process-quality-assurance

• Add stress test. by @philljj in #387
• Add cmake CI test and fix pthread detection by @embhorn in #389
• Initial wolfMQTT Espressif ESP32 template and AWS IoT examples by @gojimmypi in #388
• Add curl test dependencies by @lealem47 in #392
• Improving and fixing typos for STM32CUBE build by @lealem47 in #391
• Fix string prop OOB read by @embhorn in #394
• Fix some Helgrind thread errors with enable-tls, and enable-curl. by @philljj in #396
• Initial Espressif CI; limit Zepher CI by @gojimmypi in #390
• Fix double unlock and double lock in multithread example. by @philljj in #397
• Fix double lock of lockRecv. by @philljj in #398