Update junit5 monorepo to v5.12.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.junit.jupiter:junit-jupiter-engine (source)	5.11.4 -> 5.12.0
org.junit.jupiter:junit-jupiter-api (source)	5.11.4 -> 5.12.0

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[github-actions]

Aar size:

Aar size change: +0.0B (29.4KiB -> 29.4KiB)

Diffuse output:

OLD: diffuse-source-file-release
NEW: rootbeer-core-release.aar

 AAR      │ old      │ new      │ diff 
──────────┼──────────┼──────────┼──────
      jar │ 15.7 KiB │ 15.7 KiB │  0 B 
 manifest │    3 KiB │    3 KiB │  0 B 
   native │ 29.3 KiB │ 29.3 KiB │  0 B 
    other │    156 B │    156 B │  0 B 
──────────┼──────────┼──────────┼──────
    total │ 48.2 KiB │ 48.2 KiB │  0 B 

 JAR     │ old │ new │ diff      
─────────┼─────┼─────┼───────────
 classes │   5 │   5 │ 0 (+0 -0) 
 methods │ 115 │ 115 │ 0 (+0 -0) 
  fields │  18 │  18 │ 0 (+0 -0)