Exclude unconfirmed cast bug by using type tags for type confirmation

build-config/spotbugs-exclude.xml

@@ -0,0 +1,27 @@
+<!--
+  ~ Copyright (c) 2024, WSO2 Inc. (http://www.wso2.com).
+  ~
+  ~ WSO2 Inc. licenses this file to you 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.
+  -->
+<FindBugsFilter>
+    <Match>
+        <Class name="io.ballerina.lib.avro.Utils" />
+        <Bug pattern="BC_UNCONFIRMED_CAST" />
+    </Match>
+    <Match>
+        <Class name="io.ballerina.lib.avro.deserialize.visitor.DeserializeVisitor" />
+        <Bug pattern="BC_UNCONFIRMED_CAST" />
+    </Match>
+</FindBugsFilter>