chore(deps): bump actions/attest from 3.0.0 to 3.2.0 #77

Job	Run time
Detecting Java dependencies manually uploaded to Maven Central	38s
Analyzing and comparing different versions of an artifact	1m 3s
Detecting malicious packages	1m 46s
Exclude and include checks in Macaron	2m 23s
How to detect vulnerable GitHub Actions	1m 28s
Provenance discovery, extraction, and verification	1m 41s
	8m 59s

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