Bump org.assertj:assertj-core from 3.26.0 to 3.26.3 #686

Job	Run time
Verify / ubuntu-latest jdk-17-zulu 3.9.9	3m 38s
Verify / setup-matrix	2s
Verify / ubuntu-latest jdk-17-zulu 3.6.3	2m 44s
Verify / ubuntu-latest jdk-17-zulu 3.9.9	4s
Verify / ubuntu-latest jdk-21-zulu 3.6.3	2m 56s
Verify / ubuntu-latest jdk-21-zulu 3.9.9	3m 4s
Verify / ubuntu-latest jdk-8-zulu 3.6.3	2m 48s
Verify / ubuntu-latest jdk-8-zulu 3.9.9	2m 54s
Verify / windows-latest jdk-17-zulu 3.6.3	4m 24s
Verify / windows-latest jdk-17-zulu 3.9.9	4m 37s
Verify / windows-latest jdk-21-zulu 3.6.3	4m 23s
Verify / windows-latest jdk-21-zulu 3.9.9	4m 45s
Verify / windows-latest jdk-8-zulu 3.6.3	4m 19s
Verify / windows-latest jdk-8-zulu 3.9.9	4m 28s
Verify / macos-latest jdk-17-zulu 3.6.3	2m 5s
Verify / macos-latest jdk-17-zulu 3.9.9	2m 7s
Verify / macos-latest jdk-21-zulu 3.6.3	2m 8s
Verify / macos-latest jdk-21-zulu 3.9.9	2m 5s
Verify / macos-latest jdk-8-zulu 3.6.3	2m 28s
Verify / macos-latest jdk-8-zulu 3.9.9	2m 25s
	58m 24s

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