fix: lula validations in store don't persist validation state

[meganwolf0]

Description

Updates the RunValidations function in the validation-store to use pointers to validations to store data across executions -
solves a couple of issues:

• Domain resources data was not able to be accessed - which prevented tests from being run on validations
• The same validations would re-execute across different targets. I believe this should not happen within a single lula validate, but if this does break some existing conceptual assumptions around executing Lula Validations, then this might be a larger conversation.

Related Issue

Fixes #789

Type of change

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Other (security config, docs update, etc)

Checklist before merging

• Test, docs, adr added or updated as needed
• [] Schema Updates applied
• Contributor Guide Steps followed

[brandtkeller]

This makes sense - thank you for both identifying the issue and fixing it!