Fix restore despite primary-key hit

[deemp]

• Fix [BUG] restore-prefixes-first-match still triggers when primary key matches #43

Description

Fix the default behavior of skip-restore-on-hit-primary-key.

Motivation and Context

See #43

The action shouldn't by default restore caches when there was a hit on the primary-key.

How Has This Been Tested?

Manually via CI

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)
• Documentation (add or update README or docs)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• All new and existing tests passed.