* fix: demoapi.c coverity scan issues

* fix: coverity scan issue and lint warnings

* fix(driver): jdbc sample for 3.0

* fix: drop table if exists

* test: valgrind case
Co-authored-by: NShengliang Guan <slguan@taosdata.com>
Co-authored-by: Shuduo Sang <sangshuduo@gmail.com>

Closes [TD-18455](https://jira.taosdata.com:18080/browse/TD-18455)

Bumps [fastjson](https://github.com/alibaba/fastjson) from 1.2.75 to 1.2.83.
- [Release notes](https://github.com/alibaba/fastjson/releases)
- [Commits](https://github.com/alibaba/fastjson/compare/1.2.75...1.2.83)

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updated-dependencies:
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  dependency-type: direct:production
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Bumps [mysql-connector-java](https://github.com/mysql/mysql-connector-j) from 8.0.16 to 8.0.28.
- [Release notes](https://github.com/mysql/mysql-connector-j/releases)
- [Changelog](https://github.com/mysql/mysql-connector-j/blob/release/8.0/CHANGES)
- [Commits](https://github.com/mysql/mysql-connector-j/compare/8.0.16...8.0.28)

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  dependency-type: direct:development
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Bumps [spring-core](https://github.com/spring-projects/spring-framework) from 5.3.2 to 5.3.20.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v5.3.2...v5.3.20)

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updated-dependencies:
- dependency-name: org.springframework:spring-core
  dependency-type: direct:production
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Co-authored-by: Shuduo Sang <sangshuduo@gmail.com>

Bumps [spring-expression](https://github.com/spring-projects/spring-framework) from 5.3.2 to 5.3.16.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](https://github.com/spring-projects/spring-framework/compare/v5.3.2...v5.3.16)

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Bumps log4j-core from 2.14.1 to 2.17.1.

---
updated-dependencies:
- dependency-name: org.apache.logging.log4j:log4j-core
  dependency-type: direct:production
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Bumps log4j-core from 2.14.1 to 2.17.1.

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  dependency-type: direct:production
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