fix: preserve AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE env variable

Author: LennartKoot

common/etc/nginx/nginx.conf

@@ -13,6 +13,7 @@ env AWS_ACCESS_KEY_ID;
 env AWS_SECRET_ACCESS_KEY;
 env AWS_SESSION_TOKEN;
 env AWS_CONTAINER_CREDENTIALS_RELATIVE_URI;
+env AWS_CONTAINER_AUTHORIZATION_TOKEN_FILE;
 env AWS_ROLE_ARN;
 env AWS_ROLE_SESSION_NAME;
 env AWS_STS_REGIONAL_ENDPOINTS;