generate-blueprint: ignore pakcage-lock files inside generators folder (#28113)

Author: mshima

generators/generate-blueprint/files.ts

@@ -25,6 +25,7 @@ export const files = asWriteFilesSection<any>({
       condition: ctx => !ctx[LOCAL_BLUEPRINT_OPTION],
       templates: [
         '.github/workflows/generator.yml',
+        '.gitignore.jhi.blueprint',
         '.prettierignore.jhi.blueprint',
         { sourceFile: 'eslint.config.js.jhi.blueprint', destinationFile: ctx => `${ctx.eslintConfigFile}.jhi.blueprint` },
         'README.md',

generators/generate-blueprint/templates/.gitignore.jhi.blueprint.ejs

@@ -0,0 +1,22 @@
+<%#
+ Copyright 2013-2024 the original author or authors from the JHipster project.
+
+ This file is part of the JHipster project, see https://www.jhipster.tech/
+ for more information.
+
+ Licensed under the Apache License, Version 2.0 (the "License");
+ you may not use this file except in compliance with the License.
+ You may obtain a copy of the License at
+
+      https://www.apache.org/licenses/LICENSE-2.0
+
+ Unless required by applicable law or agreed to in writing, software
+ distributed under the License is distributed on an "AS IS" BASIS,
+ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ See the License for the specific language governing permissions and
+ limitations under the License.
+-%>
+<&_ if (!fragment.section) { -&>
+# added by generate-blueprint:
+generators/**/package-lock.json
+<&_ } -&>