Update dependency org.assertj:assertj-core to v3.25.0

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.assertj:assertj-core (source)	3.24.2 -> 3.25.0

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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 │ 131.9 KiB │ 131.9 KiB │  0 B │   272 KiB │   272 KiB │  0 B 
 other │   2.1 KiB │   2.1 KiB │  0 B │     566 B │     566 B │  0 B 
───────┼───────────┼───────────┼──────┼───────────┼───────────┼──────
 total │   134 KiB │   134 KiB │  0 B │ 272.6 KiB │ 272.6 KiB │  0 B 

 CLASSES │ old │ new │ diff      
─────────┼─────┼─────┼───────────
 classes │  78 │  78 │ 0 (+0 -0) 
 methods │ 680 │ 680 │ 0 (+0 -0) 
  fields │ 158 │ 158 │ 0 (+0 -0)