fix: ignoreScripts default (#18403)

Changes ignoreScripts defaulit to be `true`.

Closes #18173

BREAKING CHANGE: ignoreScripts now default to true. If allowScripts=true in global config, ignoreScripts must be set to false in repo config if you want all repos to run scripts.

lib/config/options/index.ts

@@ -625,9 +625,9 @@ const options: RenovateOptions[] = [
   {
     name: 'ignoreScripts',
     description:
-      'Set this to `true` if `allowScripts=true` but you wish to skip running scripts when updating lock files.',
+      'Set this to `false` if `allowScripts=true` and you wish to run scripts when updating lock files.',
     type: 'boolean',
-    default: false,
+    default: true,
     supportedManagers: ['npm', 'composer'],
   },
   {

lib/modules/manager/npm/post-update/lerna.ts

@@ -79,7 +79,7 @@ export async function generateLockFiles(
       return { error: false };
     }
     let lernaCommand = `lerna bootstrap --no-ci --ignore-scripts -- `;
-    if (GlobalConfig.get('allowScripts') && config.ignoreScripts !== false) {
+    if (GlobalConfig.get('allowScripts') && !config.ignoreScripts) {
       cmdOptions = cmdOptions.replace('--ignore-scripts ', '');
       lernaCommand = lernaCommand.replace('--ignore-scripts ', '');
     }