Add spring-expression dependency to spring-batch-infrastructure

Before this commit, there was a compilation error in
SpELItemKeyMapper due to missing MapAccessor class which
moved from spring-context to spring-expression in Spring
Framework 7.

Related to spring-projects/spring-framework#35537

Author: fmbenhassine

spring-batch-infrastructure/pom.xml

@@ -51,6 +51,12 @@
 			<version>${spring-framework.version}</version>
 			<optional>true</optional>
 		</dependency>
+        <dependency>
+            <groupId>org.springframework</groupId>
+            <artifactId>spring-expression</artifactId>
+            <version>${spring-framework.version}</version>
+            <optional>true</optional>
+        </dependency>
 		<dependency>
 			<groupId>org.springframework</groupId>
 			<artifactId>spring-orm</artifactId>