Use swift CI

[adam-fowler]

Include Swift CI soundness actions

• Currently disabled license header and formatting as they require huge changes. Will do in later PR
• Unacceptable language disabled as it clashes with some Valkey commands
• Added environment variable to enable benchmarks in Package.swift as we can't install jemalloc for api-breakage test (not sure about this, makes local dev a little more annoying as we have to define ENABLE_VALKEY_BENCHMARKS to run the benchmarks). It currently fails because it can't compile main.

Looked at using the swift-nio unit-test setup but there doesn't seem to be anyway to run the integration tests if we use them.

[github-actions]

✅ Pull request no significant performance differences ✅

Summary

New baseline 'pull_request' is WITHIN the 'main' baseline thresholds.

Full Benchmark Comparison

Comparing results between 'main' and 'pull_request'

Host '283612c5e561' with 4 'x86_64' processors with 15 GB memory, running:
#18~24.04.1-Ubuntu SMP Sat Jun 28 04:46:03 UTC 2025

ValkeyBenchmarks

GET benchmark metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	4	4	4	4	4	4	4	8
pull_request	4	4	4	4	4	4	4	9
Δ	0	0	0	0	0	0	0	1
Improvement %	0	0	0	0	0	0	0	1

HashSlot – {user}.whatever metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	0	0	0	0	0	0	0	18
pull_request	0	0	0	0	0	0	0	18
Δ	0	0	0	0	0	0	0	0
Improvement %	0	0	0	0	0	0	0	0

ValkeyCommandEncoder – Command with 7 words metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	0	0	0	0	0	0	0	752
pull_request	0	0	0	0	0	0	0	747
Δ	0	0	0	0	0	0	0	-5
Improvement %	0	0	0	0	0	0	0	-5

ValkeyCommandEncoder – Simple GET metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	0	0	0	0	0	0	0	1927
pull_request	0	0	0	0	0	0	0	1921
Δ	0	0	0	0	0	0	0	-6
Improvement %	0	0	0	0	0	0	0	-6

ValkeyCommandEncoder – Simple MGET 15 keys metrics

Malloc (total): results within specified thresholds, fold down for details.

Malloc (total) *	p0	p25	p50	p75	p90	p99	p100	Samples
main	0	0	0	0	0	0	0	360
pull_request	0	0	0	0	0	0	0	359
Δ	0	0	0	0	0	0	0	-1
Improvement %	0	0	0	0	0	0	0	-1