Replace kotlin-test project dependencies in the project

Use dependency helper function that chooses whether to take them
from the bootstrap repository or from a configuration of kotlin-test

KT-61969

libraries/tools/binary-compatibility-validator/build.gradle

@@ -8,7 +8,7 @@ dependencies {
     api("org.jetbrains.kotlinx:binary-compatibility-validator:0.13.0")
     api("org.jetbrains.kotlinx:kotlinx-metadata-jvm:0.7.0")
 
-    testApi project(':kotlin-test:kotlin-test-junit')
+    testApi RepoDependencies.kotlinTest(project, "junit")
 
     testArtifacts project(':kotlin-stdlib')
     testArtifacts project(':kotlin-stdlib-jdk7')