bugfix: Use platform Java from BSP instead of metals one #11586

Job	Run time
windows-latest jdk-17 unit tests 1 / 2	30m 21s
Gradle MacOS integration	14m 0s
windows-latest jdk-17 unit tests 2 / 2	24m 53s
Sbt integration	59m 36s
macOS-latest jdk-17 unit tests 1 / 2	21m 26s
Maven integration	9m 35s
macOS-latest jdk-17 unit tests 2 / 2	17m 40s
Gradle integration	9m 29s
ubuntu-latest jdk-17 unit tests 1 / 2	22m 38s
Scala CLI integration	18m 20s
ubuntu-latest jdk-17 unit tests 2 / 2	18m 1s
Mill integration	18m 33s
ubuntu-latest jdk-8 unit tests 1 / 2	23m 21s
LSP integration tests	31m 58s
ubuntu-latest jdk-8 unit tests 2 / 2	24m 33s
Scala cross tests	1h 2m 16s
Formatting	57s
Scalafix and docs	9m 28s
Sbt-metals/scripted jdk8	1m 37s
Scala javapc tests	2m 41s
Scala3 latest NIGHTLY cross test	4m 4s
MiMa	45s
	7h 6m 12s

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