dcerpc: update alert count

In the given pcap, the packets that match criteria for sid:1 are 39, 76.
the packets that match the criteria for sid:2 are 36, 73.

However, due to some trailing data at the beginning of the input passed
to the DCERPC parser for the packets 73-76 (request-response pair), they
were disregarded with an error during header parsing causing
app_layer_error exception_policy to trigger.

This no longer exists with the patch for:
Ticket: 7251

Author: inashivb

tests/truncate-applayer-test-02/test.yaml

@@ -5,11 +5,31 @@ args:
 
 checks:
 - filter:
+    min-version: 9
+    count: 2
+    match:
+      event_type: alert
+      alert.signature_id: 1
+- filter:
+    min-version: 9
+    count: 2
+    match:
+      event_type: alert
+      alert.signature_id: 2
+- filter:
+    min-version: 9
+    count: 0
+    match:
+      event_type: flow
+      flow.exception_policy[0].target: app_layer_error
+- filter:
+    lt-version: 9
     count: 1
     match:
       event_type: alert
       alert.signature_id: 1
 - filter:
+    lt-version: 9
     count: 1
     match:
       event_type: alert