Plugin does not work with strict mode

[amarkezic]

Describe the bug
With ajv option set to strict mode the ajv-merge-patch package does not work. I receive the error:
strict mode: required property "value" is not defined at "#/properties/with/items/anyOf/0" (strictRequired)

To Reproduce
Steps to reproduce the behavior:

1. Set ajv schema option { strict: true }
2. Register the plugin
3. Run fastify
4. See error

Expected behavior
Package should work even with strict mode on

Do you have a proposed solution?
In this line a property is required which is not defined, after removing it locally everything worked as expected.

ajv-merge-patch/keywords/patch.js

Line 19 in 0a4c44f

"required": [ "value" ]

Additional context and screenshots
Add any other context about the problem, and screenshots if applicable.