maj pa11y: ajout des variables d'environnement groovy

vars/pa11y.groovy

@@ -5,6 +5,7 @@ def audit(String url, Map params = [:]) {
     def standard = params.standard ? params.standard : 'WCAG2AA';
     def includeWarnings = params.includeWarnings ? params.includeWarnings : false;
     def includeNotices = params.includeNotices ? params.includeNotices : false;
+    def cookie_value = params.cookie_value ? params.cookie_value : 'fr_FR';
     
     def pa11yImage = buildDockerImage()
 
@@ -16,6 +17,7 @@ def audit(String url, Map params = [:]) {
     -e PA11Y_STANDARD='${standard}'
     -e PA11Y_INCLUDE_WARNINGS='${includeWarnings}'
     -e PA11Y_INCLUDE_NOTICES='${includeNotices}'
+    -e PA11Y_COOKIE='${cookie_value}'
     """
 
     pa11yImage.inside(dockerArgs) {