Avoid batch prefetching for un-optimized registries

[charliermarsh]

Summary

We now track the discovered IndexCapabilities for each IndexUrl. If we learn that an index doesn't support range requests, we avoid doing any batch prefetching.

Closes #7221.

[codspeed-hq]

CodSpeed Performance Report

Merging #7226 will degrade performances by 11.51%

_{Comparing charlie/range-stop (b322350) with main (970bd1a)}

Summary

❌ 1 regressions
✅ 13 untouched benchmarks

⚠️ Please fix the performance issues or acknowledge them on CodSpeed.

Benchmarks breakdown

	Benchmark	main	charlie/range-stop	Change
❌	wheelname_tag_compatibility[flyte-short-incompatible]	897.2 ns	1,013.9 ns	-11.51%