[MNT] Range-based AD metrics: The functions in `_continuous.py` need to be updated to use the new implementations

[SebastianSchmidl]

Once, #2781 is merged, we need to update the following metrics to also use the new implementation of the range-based precision and recall metrics:

• f_score_at_k_ranges
• rp_rr_auc_score

In file aeon/benchmarking/metrics/anomaly_detection/_continuous.py; Please also update the tests to not require the soft-dependency prts anymore.

[SebastianSchmidl]

@aryanpola, you can go ahead and work on this now.