Fix flaky test `CertificateTests.testCertificateDescription` #29

Job	Run time
Cxx interop / Construct Cxx interop matrix	2s
Benchmarks / Construct Benchmarks matrix	2s
Unit tests / Construct unit test matrix	3s
Check cmake lists / Windows (6.0)	1s
Check cmake lists / Linux (5.9)	39s
Check cmake lists / Windows (nightly-6.0)	3s
Check cmake lists / Linux (5.10)	34s
Check cmake lists / Windows (nightly-main)	3s
Soundness / API breakage check	2m 3s
Check cmake lists / Linux (6.0)	40s
Check cmake lists / Linux (nightly-6.0)	41s
Soundness / Broken symlinks check	3s
Check cmake lists / Linux (nightly-main)	48s
Soundness / Documentation check	1m 46s
Soundness / License headers check	5s
Soundness / Format check	35s
Soundness / Shell check	37s
Soundness / Unacceptable language check	2s
Soundness / Python lint check	4s
Soundness / YAML lint check	8s
Cxx interop / Cxx interop / Linux (5.9)	1m 40s
Cxx interop / Cxx interop / Linux (5.10)	1m 22s
Cxx interop / Cxx interop / Linux (6.0)	1m 40s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 47s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 50s
Unit tests / Unit tests / Linux (5.9)	3m 21s
Unit tests / Unit tests / Linux (5.10)	3m 20s
Unit tests / Unit tests / Linux (6.0)	3m 25s
Unit tests / Unit tests / Linux (nightly-6.0)	3m 51s
Unit tests / Unit tests / Linux (nightly-main)	3m 41s
Benchmarks / Benchmarks / Linux (5.9)	8m 26s
Benchmarks / Benchmarks / Linux (5.10)	8m 20s
Benchmarks / Benchmarks / Linux (6.0)	8m 5s
Benchmarks / Benchmarks / Linux (nightly-6.0)	8m 56s
Benchmarks / Benchmarks / Linux (nightly-main)	8m 21s
	1h 17m 4s

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