:bug: fix embedding error

langchat-common/langchat-common-core/pom.xml

@@ -57,19 +57,11 @@
             <version>${druid.version}</version>
         </dependency>
 
-        <!-- Excel -->
-        <dependency>
-            <groupId>com.pig4cloud.excel</groupId>
-            <artifactId>excel-spring-boot-starter</artifactId>
-            <version>3.2.1</version>
-            <exclusions>
-                <exclusion>
-                    <artifactId>poi-ooxml-schemas</artifactId>
-                    <groupId>org.apache.poi</groupId>
-                </exclusion>
-            </exclusions>
+        <dependency>
+            <groupId>commons-io</groupId>
+            <artifactId>commons-io</artifactId>
+            <version>2.16.1</version>
         </dependency>
-
         <dependency>
             <groupId>jakarta.servlet</groupId>
             <artifactId>jakarta.servlet-api</artifactId>