update mention of entry points API in help text #25628

Job	Run time
Classify changes	3s
Bootstrap Pants, test Rust (macOS13-x86_64)	4m 41s
Bootstrap Pants, test and lint Rust (Linux-x86_64)	2m 40s
Bootstrap Pants, test Rust (Linux-ARM64)	1m 46s
Build wheels (Linux-ARM64)	0s
Ensure PR has release notes	3s
Build wheels (Linux-x86_64)	0s
Build wheels (macOS13-x86_64)	0s
Build wheels (macOS14-ARM64)	0s
Test Python (Linux-ARM64)	10m 17s
Test Python (Linux-x86_64) Shard 1/10	14m 32s
Test Python (Linux-x86_64) Shard 0/10	14m 27s
Lint Python and Shell	3m 25s
Test Python (Linux-x86_64) Shard 2/10	14m 26s
Test Python (Linux-x86_64) Shard 3/10	14m 9s
Test Python (Linux-x86_64) Shard 4/10	24m 6s
Test Python (Linux-x86_64) Shard 5/10	10m 24s
Test Python (Linux-x86_64) Shard 6/10	6m 14s
Test Python (Linux-x86_64) Shard 7/10	15m 30s
Test Python (Linux-x86_64) Shard 8/10	11m 24s
Test Python (Linux-x86_64) Shard 9/10	10m 23s
Test Python (macOS13-x86_64)	18m 27s
Set Merge OK	1s
Merge OK	1s
	2h 56m 59s

Provide feedback