Add seed data for Table: `sdg_target_indicator`

### Dependency

- [ ] #71

### Overview

We need to add seed data for the sdg_target_indicator table, because it won't be changing, it's the same for all users of people depot and the information is public

### Action Items

- [ ] Read the instructions (resource 1.01)
- [x] Find the table (resource 1.02), and add it to the resources below (resource 2.01)
- [ ] create the csv file
- [ ] convert the csv file to python script
- [ ] Combine the script in migration
- [ ] Update the 2.02 & 2.03 links when the PR is merged

### Resources

#### Resources for creating this issue

- 1.01 Instruction: https://hackforla.github.io/peopledepot/contributing/howto/create-initial-data-migrations/
- 1.02 tables folder: https://github.com/hackforla/peopledepot/blob/main/app/core/migrations/

#### Resources gathered during the completion of this issue

- 2.01 table: https://github.com/hackforla/peopledepot/blob/main/app/core/migrations/0050_sdgtargetindicator.py
- 2.02 csv file (after commit): https://github.com/hackforla/peopledepot/blob/main/app/core/initial_data/[TO BE FILLED IN].csv
- 2.03 script that adds seed data: https://github.com/hackforla/peopledepot/blob/main/app/core/scripts/[TO BE FILLED IN]_seed.py