Bump org.assertj:assertj-core from 3.26.3 to 3.27.0 in /devtools/gradle #571

Job	Run time
Initial JDK 17 Build	14m 39s
Attach pull request number	3s
CI Sanity Check	31s
Calculate Test Jobs	10s
Gradle Tests - JDK 17	33m 13s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Gradle Tests - JDK 17 Windows	51m 19s
JVM Tests - JDK 17	7m 55s
JVM Tests - JDK 21	8m 1s
Maven Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	13m 14s
Quickstarts Compilation - JDK 17	7m 2s
Native Tests - Misc4	18m 53s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Upload build stats to collector	0s
Build report	30s
	2h 35m 30s

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