Add exclusions for .java-version and .claude directories in assembly configuration (#18156)

Author: yashmayya

pinot-distribution/pinot-source-assembly.xml

@@ -41,6 +41,8 @@
         <exclude>.gitignore</exclude>
         <exclude>.trivyignore</exclude>
         <exclude>.mvn/**</exclude>
+        <exclude>.java-version</exclude>
+        <exclude>.claude/**</exclude>
 
         <!-- Do not inclue node_modules in pinot-controller -->
         <exclude>pinot-controller/src/main/resources/node_modules/**</exclude>