Document new epss_percentage filter for Dependabot Alerts (#54710)

Co-authored-by: Anne-Marie <102995847+am-stead@users.noreply.github.com>

Author: jeffwidman

data/reusables/dependabot/dependabot-alerts-filters.md

@@ -14,6 +14,9 @@ You can sort and filter {% data variables.product.prodname_dependabot_alerts %}
 | `repo` |  Displays alerts based on the repository they relate to</br>Note that this filter is only available for security overview. For more information, see [AUTOTITLE](/code-security/security-overview/about-security-overview) | Use `repo:octocat-repo` to show alerts in the repository called `octocat-repo` |
 | `scope` | Displays alerts based on the scope of the dependency they relate to | Use `scope:development` to show alerts for dependencies that are only used during development |
 | `severity` | Displays alerts based on their level of severity | Use `severity:high` to show alerts with a severity of High |
+|{% ifversion dependabot-alerts-epss-score %}|
+| `epss_percentage` | Displays alerts based on their EPSS-predicted probability of exploitation | Use `epss_percentage:>0.01` to see alerts with an EPSS percentage greater than 1% |
+|{% endif %}|
 | `sort` | Displays alerts according to the selected sort order | The default sorting option for alerts is `sort:most-important`, which ranks alerts by importance</br>Use `sort:newest` to show the latest alerts reported by {% data variables.product.prodname_dependabot %}{% ifversion dependabot-alerts-epss-score %}</br>Use `sort:epss-percentage` to show alerts ordered by descending EPSS score.{% endif %} |
 
 {% ifversion dependabot-alerts-epss-score %}