where can me download the analysis-icu or how to install the analysis-icu

To download and install the analysis-icu plugin for Elasticsearch, you can follow these steps:

1. Open a terminal or command prompt.

2. Navigate to the Elasticsearch bin directory.

3. Run the following command to install the analysis-icu plugin:

   ./elasticsearch-plugin install analysis-icu

If you're using Windows, the command will be:

   elasticsearch-plugin install analysis-icu

4. Elasticsearch will download and install the analysis-icu plugin. Once the installation is complete, you should see a confirmation message.

5. Restart Elasticsearch for the changes to take effect.

After restarting Elasticsearch, the analysis-icu plugin will be installed and ready to use. You can then proceed with configuring and using the `icu_collation_keyword` type in your mappings without encountering the `mapper_parsing_exception`.