Add the deprecation plugin to the default linter setup, switched off.

This allows to disable deprecation warnings for `backstage-cli repo list-deprecations` with inline comments.

Signed-off-by: Axel Hecht <axel@pike.org>

.changeset/polite-toys-camp.md

@@ -0,0 +1,7 @@
+---
+'@backstage/cli': patch
+---
+
+Add the deprecation plugin to the default linter setup, switched off.
+
+This allows to disable deprecation warnings for `backstage-cli repo list-deprecations` with inline comments.

packages/cli/config/eslint-factory.js

@@ -66,7 +66,7 @@ function createConfig(dir, extraConfig = {}) {
       ...(extraExtends ?? []),
     ],
     parser: '@typescript-eslint/parser',
-    plugins: ['import', 'unused-imports', ...(plugins ?? [])],
+    plugins: ['import', 'unused-imports', 'deprecation', ...(plugins ?? [])],
     env: {
       jest: true,
       ...env,
@@ -84,6 +84,7 @@ function createConfig(dir, extraConfig = {}) {
       ...(ignorePatterns ?? []),
     ],
     rules: {
+      'deprecation/deprecation': 'off',
       'no-shadow': 'off',
       'no-redeclare': 'off',
       '@typescript-eslint/no-shadow': 'error',