Review Time Assertions in Tests: test_router_dataset_generic_fields

[jsmatias]

Description:
The current time assertion in the test_router_dataset_generic_fields, specifically the time set as 0.2, was increased due to intermittent failures observed during pre-commit locally. While the adjustment temporarily mitigated the failures, it's uncertain the purpose of initially setting the time to 0.1.

To ensure consistency in time-related assertions across tests, it is necessary to review and standardise the time assertions.

Proposed Solution:
The proposed solution involves the following steps:

1. Review the purpose and significance of the time assertion set initially to 0.1.
2. Standardise time assertions across tests to ensure consistency.

Originally from discussion in #298 (comment)