docs: add Trivy scan badges

README.md

@@ -45,7 +45,7 @@ This job performs a static analysis of your shell scripts using [ShellCheck](htt
 | Input / Variable | Description                            | Default value     |
 | ----------------------- | -------------------------------------- | ----------------- |
 | `shellcheck-disabled` / `BASH_SHELLCHECK_DISABLED` | Set to `true` to disable ShellCheck                                                | _none_ (enabled) |
-| `shellcheck-image` / `BASH_SHELLCHECK_IMAGE` | The Docker image used to run [ShellCheck](https://github.com/koalaman/shellcheck) | `registry.hub.docker.com/koalaman/shellcheck-alpine:stable` |
+| `shellcheck-image` / `BASH_SHELLCHECK_IMAGE` | The Docker image used to run [ShellCheck](https://github.com/koalaman/shellcheck) | `registry.hub.docker.com/koalaman/shellcheck-alpine:stable` <br/>[![Trivy Badge](https://to-be-continuous.gitlab.io/doc/secu/trivy-badge-BASH_SHELLCHECK_IMAGE.svg)](https://to-be-continuous.gitlab.io/doc/secu/trivy-BASH_SHELLCHECK_IMAGE) |
 | `shellcheck-files` / `BASH_SHELLCHECK_FILES` | Shell file(s) or pattern(s) to analyse                                                   | `**/*.sh`            |
 | `shellcheck-opts` / `BASH_SHELLCHECK_OPTS` | ShellCheck [options](https://github.com/koalaman/shellcheck/blob/master/shellcheck.1.md) | _none_ |
 
@@ -58,7 +58,7 @@ The job uses the following variables:
 | Input / Variable | Description                            | Default value     |
 | ----------------------- | -------------------------------------- | ----------------- |
 | `bats-enabled` / `BASH_BATS_ENABLED` | Set to `true` to enable bats tests                                                    | _none_ (disabled) |
-| `bats-image` / `BASH_BATS_IMAGE` | The Docker image used to run [Bats](https://hub.docker.com/r/bats/bats) | `registry.hub.docker.com/bats/bats:latest` |
+| `bats-image` / `BASH_BATS_IMAGE` | The Docker image used to run [Bats](https://hub.docker.com/r/bats/bats) | `registry.hub.docker.com/bats/bats:latest` <br/>[![Trivy Badge](https://to-be-continuous.gitlab.io/doc/secu/trivy-badge-BASH_BATS_IMAGE.svg)](https://to-be-continuous.gitlab.io/doc/secu/trivy-BASH_BATS_IMAGE) |
 | `bats-tests` / `BASH_BATS_TESTS` | The path to a Bats test file, or the path to a directory containing Bats test files | `tests`           |
 | `bats-opts` / `BASH_BATS_OPTS` | Bats [options](https://bats-core.readthedocs.io/en/stable/usage.html)                | _none_ |
 | `bats-libraries` / `BASH_BATS_LIBRARIES` | Coma separated list of Bats [libraries and add-ons](https://bats-core.readthedocs.io/en/stable/writing-tests.html#libraries-and-add-ons) (formatted as `lib_name_1@archive_url_1 lib_name_2@archive_url_2 ...`) | _none_ |