Add deprecation warning for 2020.1 (#2476)

Author: hunterwerlla

.changes/next-release/deprecation-4d1d1487-1726-41f0-9524-eab25f0e0f20.json

@@ -0,0 +1,4 @@
+{
+  "type" : "deprecation",
+  "description" : "2020.1 support will be removed in the next release"
+}

jetbrains-core/src/software/aws/toolkits/jetbrains/core/notification/JetBrainsMinimumVersionChange.kt

@@ -9,14 +9,14 @@ import com.intellij.openapi.application.ApplicationNamesInfo
 import software.aws.toolkits.resources.message
 
 class JetBrainsMinimumVersionChange : NoticeType {
-    override val id: String = "JetBrainsMinimumVersion_201"
+    override val id: String = "JetBrainsMinimumVersion_202"
     private val noticeContents = NoticeContents(
         message("notice.title.jetbrains.minimum.version"),
         message(
             "notice.message.jetbrains.minimum.version",
             ApplicationInfo.getInstance().fullVersion,
             ApplicationNamesInfo.getInstance().fullProductName,
-            "2020.1"
+            "2020.2"
         )
     )
 
@@ -29,16 +29,7 @@ class JetBrainsMinimumVersionChange : NoticeType {
         return false
     }
 
-    override fun isNotificationRequired(): Boolean {
-        val appInfo = ApplicationInfo.getInstance()
-        val majorVersion = appInfo.majorVersion.toIntOrNull()
-
-        majorVersion?.let {
-            return majorVersion < 2020
-        }
-
-        return true
-    }
+    override fun isNotificationRequired(): Boolean = ApplicationInfo.getInstance().build.baselineVersion < 202
 
     override fun getNoticeContents(): NoticeContents = noticeContents
     override fun getNoticeType(): NotificationType = NotificationType.WARNING