Make job summary disable input schema compatible

[RobiNino]

• [x] All tests passed. If this feature is not already covered by the tests, I added new tests.

• [x] I used npm run format for formatting the code before submitting the pull request.

[yahavi]

In other Actions, GitHub uses boolean defaults: https://github.com/actions/setup-java/blob/main/action.yml#L48 https://github.com/actions/setup-go/blob/main/action.yml#L11 https://github.com/actions/setup-node/blob/main/action.yml#L16 https://github.com/actions/setup-python/blob/main/action.yml#L17