fix warnings DecimalField should be Decimal type

[jerryfletcher21]

What does this PR do?

The warnings were caused by the validators MinValueValidator and MaxValueValidator inside a DecimalField.

Checklist before merging

• Install pre-commit and initialize it: pip install pre-commit, then pre-commit install. Pre-commit installs git hooks that automatically check the codebase. If pre-commit fails when you commit your changes, please fix the problems it points out.

[Reckless-Satoshi]

Thank you @jerryfletcher21 these warning were annoying. I believe they came in with the Django v5 update, I eliminated some of them but missed these ones. Please submit an invoice for 20K and a loong expiration time (+1 week) for a small Dev Fund tip 🚀

[jerryfletcher21]

Please submit an invoice for 20K and a loong expiration time (+1 week) for a small Dev Fund tip 🚀

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