build(deps): bump golang.org/x/sync from 0.20.0 to 0.21.0 in the go-minor group

[dependabot]

Bumps the go-minor group with 1 update: golang.org/x/sync.

Updates golang.org/x/sync from 0.20.0 to 0.21.0

Commits

• 5071ed6 all: fix some comments to improve readability
• See full diff in compare view

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[github-actions]

PR Quality Report

Compared against base branch main.

Coverage and tests

Signal	Base	PR	Delta
Test count	0	0	0
Coverage	0%	0%	n/a

Compatibility

Track	Base	PR	Delta
Loki API	100.0%	11/11 (100.0%)	0.0% (stable)
Logs Drilldown	100.0%	17/17 (100.0%)	0.0% (stable)
VictoriaLogs	100.0%	11/11 (100.0%)	0.0% (stable)

Performance smoke

Lower CPU cost (ns/op) is better. Lower benchmark memory cost (B/op, allocs/op) is better. Higher throughput is better. Lower load-test memory growth is better. Benchmark rows are medians from repeated samples.

Signal	Base	PR	Delta
QueryRange cache-hit CPU cost	2927.0 ns/op	2920.0 ns/op	-0.2% (stable)
QueryRange cache-hit memory	1184.0 B/op	1184.0 B/op	0.0% (stable)
QueryRange cache-hit allocations	29.0 allocs/op	29.0 allocs/op	0.0% (stable)
QueryRange cache-bypass CPU cost	3261.0 ns/op	3182.0 ns/op	-2.4% (stable)
QueryRange cache-bypass memory	1245.0 B/op	1245.0 B/op	0.0% (stable)
QueryRange cache-bypass allocations	30.0 allocs/op	30.0 allocs/op	0.0% (stable)
Labels cache-hit CPU cost	662.3 ns/op	668.6 ns/op	+1.0% (stable)
Labels cache-hit memory	48.0 B/op	48.0 B/op	0.0% (stable)
Labels cache-hit allocations	3.0 allocs/op	3.0 allocs/op	0.0% (stable)
Labels cache-bypass CPU cost	1190.0 ns/op	1188.0 ns/op	-0.2% (stable)
Labels cache-bypass memory	391.0 B/op	391.0 B/op	0.0% (stable)
Labels cache-bypass allocations	14.0 allocs/op	14.0 allocs/op	0.0% (stable)

State

• Coverage, compatibility, and sampled performance are reported here from the same PR workflow.
• This is a delta report, not a release gate by itself. Required checks still decide merge safety.
• Performance is a smoke comparison, not a full benchmark lab run.
• Delta states use the same noise guards as the quality gate (percent + absolute + low-baseline checks), so report labels match merge-gate behavior.

[dependabot]

Looks like golang.org/x/sync is updatable in another way, so this is no longer needed.