[AMORO-2464] Fix bug AMS will repeat trigger the same minor optimize …

…when the bucket > self-optimizing.minor.trigger.file-count (#2465)

Fix the bug: #2464  [Bug]: AMS will repeat trigger the same minor optimize when the bucket > self-optimizing.minor.trigger.file-count

(cherry picked from commit 8facf5b)
Signed-off-by: zhoujinsong <zhoujinsong0505@163.com>

ams/server/src/main/java/com/netease/arctic/server/optimizing/plan/MixedIcebergPartitionPlan.java

@@ -155,7 +155,7 @@ public boolean isMinorNecessary() {
       if (keyedTable) {
         int smallFileCount = fragmentFileCount + equalityDeleteFileCount;
         int baseSplitCount = getBaseSplitCount();
-        if (smallFileCount >= Math.max(baseSplitCount, config.getMinorLeastFileCount())) {
+        if (smallFileCount >= Math.max(baseSplitCount + 1, config.getMinorLeastFileCount())) {
           return true;
         } else if ((smallFileCount > baseSplitCount || hasChangeFiles) && reachMinorInterval()) {
           return true;