GroovyParserTest: don't clear workdir while indexer is active #12092

Job	Run time
Build Clusters on JDK 17	9m 20s
NetBeans on nb-javac	0s
Build Clusters on JDK 21	8m 24s
Build Clusters on JDK 24-ea	7m 33s
Build-System / Misc Tests on Linux/JDK 17	25m 54s
Check Paperwork on Linux/JDK 17	12m 56s
IDE Modules on Linux/JDK 17	19m 12s
CV on ubuntu-latest/JDK 17	8m 32s
Build ${{ matrix.config }} from src.zip on JDK ${{ matrix.java }}	0s
CV on macos-latest/JDK 17	18m 59s
Build-Tools on Linux/JDK ${{ matrix.java }}	0s
CV on windows-latest/JDK 17	12m 40s
Platform Modules batch1 on Linux/JDK ${{ matrix.java }} (some on 8)	0s
CV on ubuntu-latest/JDK 23	11m 58s
Platform Modules batch2 on Linux/JDK ${{ matrix.java }}	0s
Java Debugger tests on Linux/JDK ${{ matrix.java }}	0s
Java Hints ${{ matrix.config }} on Linux/JDK ${{ matrix.java }}	0s
Java Modules on Linux/JDK ${{ matrix.java }}	0s
Profiler on Linux/JDK ${{ matrix.java }}	0s
Groovy on Linux/JDK 17	12m 5s
JavaFX on Linux/JDK ${{ matrix.java }}	0s
Groovy on Linux/JDK 21	10m 51s
Rust on Linux/JDK ${{ matrix.java }}	0s
Web Modules on Linux/JDK ${{ matrix.java }}	0s
Enterprise on Linux/JDK ${{ matrix.java }}	0s
LSP tests on Linux/JDK ${{ matrix.java }}	0s
DB Tests with MySQL on Linux/JDK ${{ matrix.java }}	0s
PHP on ${{ matrix.os }}/JDK ${{ matrix.java }}	0s
Versioning Modules on Linux/JDK ${{ matrix.java }}	0s
GraalVM ${{ matrix.graal }} Tests	0s
VSCode Extension Tests on JDK ${{ matrix.java }}	0s
Cleanup Workflow Artifacts	3s
	2h 38m 27s

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