Backport "Fix bisect script to emit bash compliant script code" to LTS (#19062)

Backports #18167 to the LTS branch.

PR submitted by the release tooling.
[skip ci]

Author: Kordyjan

project/scripts/bisect.scala

@@ -235,7 +235,7 @@ class CommitBisect(validationScript: File, shouldFail: Boolean, bootstrapped: Bo
     val scala3CompilerProject = if bootstrapped then "scala3-compiler-bootstrapped" else "scala3-compiler"
     val scala3Project = if bootstrapped then "scala3-bootstrapped" else "scala3"
     val validationCommandStatusModifier = if shouldFail then "! " else "" // invert the process status if failure was expected
-    val bisectRunScript = s"""
+    val bisectRunScript = raw"""
       |scalaVersion=$$(sbt "print ${scala3CompilerProject}/version" | tail -n1)
       |rm -r out
       |sbt "clean; ${scala3Project}/publishLocal"