<commit_before><commit_msg>Add `Closes` and `RFC` fields for PR templates<commit_after>### What does this PR do?

### How should this be tested?

### QA Checklist

### Impacted Areas

### Questions?

### Related Issues

RFC <#RFC>

Closes <#ISSUE>

- [ ] QA Complete

{'fraction_non_alphanumeric': 0.149812734082397, 'fraction_numerical': 0.0, 'mean_word_length': 4.469387755102041, 'pattern_counts': {'":': 0, '<': 5, '<?xml version=': 0, '>': 5, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 0, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5490046', 'n_tokens_mistral': 98, 'n_tokens_neox': 94, 'n_words': 31}