docs: add Trivy scan badges

README.md

@@ -46,7 +46,7 @@ The Maven template uses some global configuration throughout all jobs.
 
 | Input / Variable                    | Description                                                                                                        | Default value |
 | --------------------- |--------------------------------------------------------------------------------------------------------------------|------------------------------------------------------------------------------------------------------------------------------------------------|
-| `image` / `MAVEN_IMAGE`             | The Docker image used to run Maven <br/>:warning: **set the version required by your project**                     | `registry.hub.docker.com/library/maven:latest` |
+| `image` / `MAVEN_IMAGE`             | The Docker image used to run Maven <br/>:warning: **set the version required by your project**                     | `registry.hub.docker.com/library/maven:latest` <br/>[![Trivy Badge](https://to-be-continuous.gitlab.io/doc/secu/trivy-badge-MAVEN_IMAGE.svg)](https://to-be-continuous.gitlab.io/doc/secu/trivy-MAVEN_IMAGE) |
 | `project-dir` / `MAVEN_PROJECT_DIR` | Maven projet root directory                                                                                        | `.` |
 | `cfg-dir` / `MAVEN_CFG_DIR`         | The Maven configuration directory                                                                                  | `.m2` |
 | `settings-file` / `MAVEN_SETTINGS_FILE` | The Maven `settings.xml` file path                                                                             | `${MAVEN_CFG_DIR}/settings.xml` |