Migrate to prek from pre-commit

[seapagan]

Migate fully from pre-commit to prek.

This is a more modern and much faster option with full pre-commit compatibility.

Also added a GitHub CI task to replace the pre-commit hook. The only difference I believe is that prek will not be able to create new commits to update the requirements*.txt etc. Can live with this.

[codacy-production]

Coverage summary from Codacy

See diff coverage on Codacy

Coverage variation	Diff coverage
✅ +0.00% (target: -1.00%)	✅ ∅

Coverage variation details

	Coverable lines	Covered lines	Coverage
Common ancestor commit (f501f28)	1541	1541	100.00%
Head commit (acc88c1)	1541 (+0)	1541 (+0)	100.00% (+0.00%)

Coverage variation is the difference between the coverage for the head and common ancestor commits of the pull request branch: <coverage of head commit> - <coverage of common ancestor commit>

Diff coverage details

	Coverable lines	Covered lines	Diff coverage
Pull request (#783)	0	0	∅ (not applicable)

Diff coverage is the percentage of lines that are covered by tests out of the coverable lines that the pull request added or modified: <covered lines added or modified>/<coverable lines added or modified> * 100%

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