(#291) Tests: fix cancellation exception being caught instead of rethrowing

Author: Fantoom

src/main/kotlin/com/intellij/plugin/powershell/lang/lsp/languagehost/LanguageServerEndpoint.kt

@@ -233,6 +233,7 @@ class LanguageServerEndpoint(
         return@job result.await()
       } catch (e: Exception) {
         when (e) {
+          is CancellationException -> throw e
           is PowerShellExtensionError -> {
             logger.warn("PowerShell extension error: ${e.message}")
             showPowerShellNotConfiguredNotification()

src/main/kotlin/com/intellij/plugin/powershell/lang/lsp/languagehost/PSLanguageHostUtils.kt

@@ -81,6 +81,7 @@ private suspend fun readPowerShellVersion(exePath: String): PSVersionInfo {
 
       PSVersionInfo.parse(stdOutReader.await().trim())
     } catch (e: Exception) {
+      if(e is CancellationException) throw e
       PSLanguageHostUtils.LOG.warn("Command execution failed for ${commandLine.preparedCommandLine}", e)
       throw PowerShellControlFlowException(e.message, e.cause)
     } finally {