fix: add missed import

Author: Jia Liu

src/233/main/kotlin/cc/unitmesh/devti/vcs/VcsUtil.kt

@@ -4,6 +4,7 @@ import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.vcs.VcsDataKeys
 import com.intellij.openapi.vcs.changes.Change
 import com.intellij.openapi.vcs.changes.CurrentContentRevision
+import com.intellij.vcs.commit.CommitWorkflowUi
 
 object VcsUtil {
     fun getCommitWorkFlowUi(e: AnActionEvent): CommitWorkflowUi? {