cli: allow linting packages with role dynamic-frontend-container

Signed-off-by: MT Lewis <mtlewis@users.noreply.github.com>

.changeset/bright-trainers-brake.md

@@ -0,0 +1,5 @@
+---
+'@backstage/cli': patch
+---
+
+Add frontend-dynamic-container role to eslint config factory

packages/cli/config/eslint-factory.js

@@ -201,6 +201,7 @@ function createConfigForRole(dir, role, extraConfig = {}) {
     case 'frontend':
     case 'frontend-plugin':
     case 'frontend-plugin-module':
+    case 'frontend-dynamic-container':
       return createConfig(dir, {
         ...extraConfig,
         extends: [