Add static code check exclusions

Author: a-d

.pipeline/checkstyle-suppressions.xml

@@ -8,7 +8,10 @@
   <!-- Suppress generated clients -->
   <suppress files="[/\\]core[/\\]client[/\\]" checks=".*"/>
   <suppress files="[/\\]core[/\\]model[/\\]" checks=".*"/>
+  <suppress files="[/\\]openai[/\\]model2[/\\]" checks=".*"/>
   <suppress files="[/\\]orchestration[/\\]model[/\\]" checks=".*"/>
   <!-- Suppress TODOs -->
   <suppress files="OpenAiChatMessage.java" checks="TodoComment" lines="257,7" />
+  <suppress files="ChatCompletionResponseMessage.java" checks="TodoComment" lines="53,34" />
+  <suppress files="CreateChatCompletionRequest.java" checks="TodoComment" lines="73,47" />
 </suppressions>

pom.xml

@@ -473,6 +473,7 @@ https://gitbox.apache.org/repos/asf?p=maven-pmd-plugin.git;a=blob_plain;f=src/ma
             <!-- Exclude generated clients -->
             <exclude>com/sap/ai/sdk/core/client/*</exclude>
             <exclude>com/sap/ai/sdk/core/model/*</exclude>
+            <exclude>com/sap/ai/sdk/foundationmodels/openai/model2/*</exclude>
             <exclude>com/sap/ai/sdk/orchestration/model/*</exclude>
           </excludes>
         </configuration>