Specify the action update thread in the ClearAllAction.

src/kotlin-intellij/main/uk/co/reecedunn/intellij/plugin/core/execution/ui/ClearAllAction.kt

@@ -1,23 +1,10 @@
-/*
- * Copyright (C) 2019 Reece H. Dunn
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
+// Copyright (C) 2019-2024 Reece H. Dunn. SPDX-License-Identifier: Apache-2.0
 package uk.co.reecedunn.intellij.plugin.core.execution.ui
 
 import com.intellij.execution.ExecutionBundle
 import com.intellij.execution.ui.ConsoleView
 import com.intellij.icons.AllIcons
+import com.intellij.openapi.actionSystem.ActionUpdateThread
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.CommonDataKeys
 import com.intellij.openapi.actionSystem.LangDataKeys
@@ -28,6 +15,8 @@ class ClearAllAction internal constructor(private val consoleView: ConsoleView?)
     ExecutionBundle.message("clear.all.from.console.action.description"),
     AllIcons.Actions.GC
 ) {
+    override fun getActionUpdateThread(): ActionUpdateThread = ActionUpdateThread.EDT
+
     override fun update(e: AnActionEvent) {
         var enabled = consoleView != null && consoleView.contentSize > 0
         if (!enabled) {