Bump ajv from 6.12.2 to 6.12.3 in /visualization
Bump ajv from 6.12.2 to 6.12.3 in /visualization

Bumps [ajv](https://github.com/ajv-validator/ajv) from 6.12.2 to 6.12.3.
- [Release notes](https://github.com/ajv-validator/ajv/releases)
- [Commits](https://github.com/ajv-validator/ajv/compare/v6.12.2...v6.12.3)

Signed-off-by: dependabot-preview[bot] <5bdcd3c0d4d24ae3e71b3b452a024c6324c7e4bb@dependabot.com>
MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta,MaibornWolff/codecharta