Bump org.jetbrains.kotlin:kotlin-gradle-plugin-api from 2.0.21 to 2.1.0 in /devtools/gradle #1739

Job	Run time
Attach pull request number	3s
Initial JDK 17 Build	12m 35s
CI Sanity Check	31s
Calculate Test Jobs	10s
Gradle Tests - JDK 17	34m 0s
JVM Tests - JDK 17	9m 6s
Gradle Tests - JDK 17 Windows	55m 28s
JVM Tests - JDK 21	9m 34s
Devtools Tests - JDK ${{ matrix.java.name }}	0s
Maven Tests - JDK ${{ matrix.java.name }}	0s
JVM Tests - JDK 17 Windows	13m 24s
Quickstarts Compilation - JDK 17	6m 44s
Kubernetes Tests - JDK ${{ matrix.java.name }}	0s
Native Tests - Misc4	20m 18s
Native Tests - Virtual Thread - ${{ matrix.category }}	0s
MicroProfile TCKs Tests	0s
Upload build stats to collector	0s
Build report	31s
	2h 42m 24s

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