Fix extracting values for fewer braces #14660

Job	Run time
windows-latest jdk-17 unit tests 1 / 2	32m 18s
Gradle MacOS integration	8m 30s
windows-latest jdk-17 unit tests 2 / 2	30m 58s
Sbt integration	50m 45s
macOS-latest jdk-17 unit tests 1 / 2	55m 6s
macOS-latest jdk-17 unit tests 2 / 2	46m 49s
Maven integration	8m 3s
ubuntu-latest jdk-17 unit tests 1 / 2	18m 19s
Gradle integration	8m 48s
ubuntu-latest jdk-17 unit tests 2 / 2	18m 46s
Scala CLI integration	13m 28s
Mill integration	34m 54s
Bazel integration	10m 18s
LSP integration tests	33m 33s
Scala cross tests	26m 30s
Formatting	39s
Scalafix and docs	5m 11s
Sbt-metals/scripted jdk11	2m 47s
sbt-metals/scripted (Sbt 2)	1m 36s
Scala javapc tests	1m 54s
Scala 2.11 cross tests	3m 59s
MiMa	55s
	6h 54m 6s

Provide feedback