fix(general): remove filter value validation

[kartikp10]

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Description

Removes validation of prisma metadata filter values since https://prisma.pan.dev/api/cloud/cspm/policy#operation/get-policy-filters-and-options only returns recently used values.

Fixes #3475

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my feature, policy, or fix is effective and works
• New and existing tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules

[tsmithv11]

LGTM