Add workaround for compiler downloader for 1.5.20 release binaries

Because of migration K/N to kotlin repo we still have some problems
with version transformation.
Right now, when in 1.5.20-release branch we have build number
(and DeployVersion) something like 1.5.20-256 K/N mechanic interprets it
as Release version and almost all artifacts have names just 1.5.20.
For example: kotlin-native-prebuilt-linux-1.5.20.tar.gz
But they are stored in the separate folder releases/1.5.20-256
and I use this in this commit.

For release version the build number should be -1, because the version
should be just 1.5.20 but we should check it or even revert the commit

kotlin-native/tools/kotlin-native-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/plugin/konan/tasks/KonanCompilerDownloadTask.kt

@@ -45,14 +45,22 @@ open class KonanCompilerDownloadTask : DefaultTask() {
             logger.info("Use a user-defined compiler path: $konanHome")
         } else {
             try {
+                // WOrkaround. see org.jetbrains.kotlin.gradle.utils.NativeCompilerDownloader.downloadAndExtract
+                val compilerVersion = project.konanVersion
+                val compilerVersionWorkaround =
+                        if (compilerVersion.build != -1 && compilerVersion.meta == MetaVersion.RELEASE)
+                            "$compilerVersion-${compilerVersion.build}"
+                        else
+                            "$compilerVersion"
+
                 val downloadUrlDirectory = buildString {
                     append("$BASE_DOWNLOAD_URL/")
                     val version = project.konanVersion
                     when (version.meta) {
                         MetaVersion.DEV -> append("dev/")
                         else -> append("releases/")
                     }
-                    append("$version/")
+                    append("$compilerVersionWorkaround/")
                     append(project.simpleOsName)
                 }
                 val konanCompiler = project.konanCompilerName()

libraries/tools/kotlin-gradle-plugin/src/main/kotlin/org/jetbrains/kotlin/gradle/targets/native/NativeCompilerDownloader.kt

@@ -97,10 +97,18 @@ class NativeCompilerDownloader(
     }
 
     private fun downloadAndExtract() {
+        // For release branch we have numeration like 1.5.20-256 and compilerVersion.toString() returns 1.5.20 and meta is RELEASE
+        // TODO: fix that in 1.5.30 release, but for now this workaround could be ok
+        val compilerVersionWorkaround =
+            if (compilerVersion.build != -1 && compilerVersion.meta == MetaVersion.RELEASE)
+                "$compilerVersion-${compilerVersion.build}"
+            else
+                "$compilerVersion"
+
         val repoUrl = buildString {
             append("$BASE_DOWNLOAD_URL/")
             append(if (compilerVersion.meta == MetaVersion.DEV) "dev/" else "releases/")
-            append("$compilerVersion/")
+            append("$compilerVersionWorkaround/")
             append(simpleOsName)
         }
         val dependencyUrl = "$repoUrl/$dependencyFileName"