Merged PR 418: Update Pre-Commit to check for valid copyright

## Summary
Updates Pre-commit with the a check to ensure valid copyright headers

## Test process
*How have you tested this (if applicable)?*

## Checklist
- [X] PR is linked to a **work item**
- [ ] **acceptance criteria** of linked ticket are met
- [ ] performed **self-review** of the code
- [ ] written **tests** for any new functionality added with this PR
- [ ] updated the **documentation** if this PR changes or adds functionality
- [ ] written/updated **design docs** if this PR implements new functionality
- [ ] updated the **change log**
- [ ] ran **pre-commit** checks for code style
- [ ] attended to any **TO-DOs** left in the code

Related work items: #2646

src/primaite/config/__init__.py

@@ -1,2 +1,2 @@
-# © Crown-owned copyright 2023, Defence Science and Technology Laboratory UK
+# © Crown-owned copyright 2024, Defence Science and Technology Laboratory UK
 """Configuration parameters for running experiments."""

src/primaite/config/load.py

@@ -1,3 +1,4 @@
+# © Crown-owned copyright 2024, Defence Science and Technology Laboratory UK
 from pathlib import Path
 from typing import Dict, Final, Union