feat!: Remove default size from cluster

[aleclarson]

Summary

This PR removes the default size from the cluster function.

Related issue, if any:

https://github.com/orgs/radashi-org/discussions/91

For any code change,

• Related documentation has been updated, if needed
• Related tests have been added or updated, if needed
• Related benchmarks have been added or updated, if needed
• Release notes in next-minor.md or next-major.md have been added, if needed

Does this PR introduce a breaking change?

Yes

The size parameter is now required when calling the cluster function. Existing applications will need to provide a size argument when calling the function.

Bundle impact

Status	File	Size 1	Difference
M	src/array/cluster.ts	107	-2 (-2%)

Footnotes

1. Function size includes the import dependencies of the function. ↩

[radashi-bot]

Benchmark Results

Name	Current	Baseline	Change
cluster ▶︎ with cluster size of 2	2,949,083.72 ops/sec ±0.73%	3,159,101.05 ops/sec ±0.44% 🔗	🐢 -6.65%
cluster ▶︎ specified cluster size of 3	2,960,403.4 ops/sec ±0.74%	3,164,951.73 ops/sec ±0.88% 🔗	🐢 -6.46%

Performance regressions of 30% or more should be investigated, unless they were anticipated. Smaller regressions may be due to normal variability, as we don't use dedicated CI infrastructure.