changing default image tag from 'latest' (#199)

Author: psig-bah

libraries/owasp_dep_check/README.md

@@ -30,7 +30,7 @@ OWASP Dependency Check Library Configuration Options
 | `cvss_threshold`         | A number between 0 and 10, inclusive, representing the failure threshold for vulnerabilities (**note:** will never fail unless a threshold is provided) |                                    |
 | `allow_suppression_file` | Allows whitelisting vulnerabilities using a suppression XML file                                                                                        | `true`                             |
 | `suppression_file`       | Path to the suppression file (see [here](https://jeremylong.github.io/DependencyCheck/general/suppression.html) for how to create a suppression file)   | `dependency-check-suppression.xml` |
-| `image_tag`              | The tag for the scanner Docker image used                                                                                                               | `latest`                           |
+| `image_tag`              | The tag for the scanner Docker image used                                                                                                               | `7.3.0-8.6-2`                      |
 
 ## Example Configuration Snippet
 

libraries/owasp_dep_check/steps/application_dependency_scan.groovy

@@ -25,7 +25,7 @@ void call() {
       }
     }
 
-    String image_tag = config?.image_tag ?: "latest"
+    String image_tag = config?.image_tag ?: "7.3.0-8.6-2"
     inside_sdp_image "owasp-dep-check:$image_tag", {
       unstash "workspace"