Bump org.jetbrains.kotlin:kotlin-gradle-plugin-api from 2.0.20 to 2.1.0 in /devtools/gradle #452

Job	Run time
CI Sanity Check	31s
Attach pull request number	4s
Initial JDK 17 Build	15m 14s
Calculate Test Jobs	9s
Gradle Tests - JDK 17	30m 55s
Gradle Tests - JDK 17 Windows	51m 7s
JVM Tests - JDK 17	9m 12s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 21	9m 4s
Maven Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	11m 10s
Quickstarts Compilation - JDK 17	6m 1s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - Misc4	18m 34s
MicroProfile TCKs Tests	0s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
Upload build stats to collector	0s
Build report	40s
	2h 32m 41s

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