Update junit-framework monorepo to v6 (major)

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
org.junit.jupiter:junit-jupiter-engine (source)	5.14.1 -> 6.0.1
org.junit.jupiter:junit-jupiter-api (source)	5.14.1 -> 6.0.1

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[github-actions]

Diffuse output:

OLD: diffuse-base-file
NEW: ktlint-gradle-plugin.jar

       │          compressed          │         uncompressed         
       ├───────────┬───────────┬──────┼───────────┬───────────┬──────
 JAR   │ old       │ new       │ diff │ old       │ new       │ diff 
───────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
 class │ 142.9 KiB │ 142.9 KiB │  0 B │ 292.5 KiB │ 292.5 KiB │  0 B 
 other │  10.1 KiB │  10.1 KiB │  0 B │  24.9 KiB │  24.9 KiB │  0 B 
───────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
 total │   153 KiB │   153 KiB │  0 B │ 317.4 KiB │ 317.4 KiB │  0 B 

 CLASSES │ old │ new │ diff      
─────────┼─────┼─────┼───────────
 classes │  86 │  86 │ 0 (+0 -0) 
 methods │ 728 │ 728 │ 0 (+0 -0) 
  fields │ 180 │ 180 │ 0 (+0 -0)