Resolve "Unnecessary download of Trivy databases"

Closes #102

See merge request !134

Resolve "Typo in README.md"

Closes #101

See merge request !133

Signed-off-by: Clement Bois <clement.bois@orange.com>

- $DOCKER_TRIVY_ADDR removed in favor of $TRIVY_SERVER
- $DOCKER_TRIVY_SECURITY_LEVEL_THRESHOLD removed in favor of $TRIVY_SEVERITY
- $DOCKER_TRIVY_DB_REPOSITORY removed in favor of $TRIVY_DB_REPOSITORY
- $DOCKER_TRIVY_JAVA_DB_REPOSITORY removed in favor of $TRIVY_JAVA_DB_REPOSITORY

BREAKING CHANGE: 4 Trivy configuration params removed in favor of the native Trivy environment variables

# [6.0.0](5.14.1...6.0.0) (2024-11-26)

### Code Refactoring

* **trivy:** enforce usage of Trivy environment variables ([e69ce135](e69ce135))

### BREAKING CHANGES

* **trivy:** 4 Trivy configuration params removed in favor of the native Trivy environment variables