Show generate creds for static-roles when you have read permissions (#19190)

* fix, need to test and write test for

* the fix

* add test coverage

* changelog:

* woops param already existed

* remove test coverage

* Delete database-role-edit-test.js

changelog/19190.txt

@@ -0,0 +1,3 @@
+```release-note:bug
+ui: show Get credentials button for static roles detail page when a user has the proper permissions.
+```

ui/app/templates/components/database-role-edit.hbs

@@ -36,12 +36,17 @@
           Rotate credentials
         </button>
       {{/if}}
-      {{#if @model.canGenerateCredentials}}
+      {{#if
+        (or
+          (and (eq @model.type "static") @model.canGetCredentials)
+          (and (eq @model.type "dynamic") @model.canGenerateCredentials)
+        )
+      }}
         <button
           type="button"
           class="toolbar-link"
           {{on "click" (fn this.generateCreds @model.id @model.type)}}
-          data-test-database-role-generate-creds
+          data-test-database-role-creds={{@model.type}}
         >
           {{if (eq @model.type "static") "Get credentials" "Generate credentials"}}
         </button>