Update actions/download-artifacts to v4

[nsavoire]

What does this PR do?:
Update actions/download-artifacts to v4.

Motivation:
This is required following the update of actions/upload-artifacts to v4 in prebuildify.

[github-actions]

Overall package size

Self size: 7.42 MB
Deduped: 7.79 MB
No deduping: 7.79 MB

Dependency sizes

name	version	self size	total size
source-map	0.7.4	226 kB	226 kB
pprof-format	2.1.0	111.69 kB	111.69 kB
p-limit	3.1.0	7.75 kB	13.78 kB
delay	5.0.0	11.17 kB	11.17 kB
node-gyp-build	3.9.0	8.81 kB	8.81 kB

_{🤖 This report was automatically generated by heaviest-objects-in-the-universe}

[pr-commenter]

Benchmarks

Benchmark execution time: 2024-05-14 10:54:58

Comparing candidate commit ad4f676 in PR branch nsavoire/update_download_artifact with baseline commit 918c1bd in branch main.

Found 1 performance improvements and 0 performance regressions! Performance is the same for 58 metrics, 31 unstable metrics.

scenario:profiler-light-load-with-wall-profiler-20

• 🟩 cpu_usage_percentage [-0.514%; -0.249%]