Bump spring-core from 5.3.20 to 5.3.26 in /web (#151)

Bumps [spring-core](https://github.com/spring-projects/spring-framework) from 5.3.20 to 5.3.26.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.3.20...v5.3.26)

---
updated-dependencies:
- dependency-name: org.springframework:spring-core
  dependency-type: direct:production
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

web/pom.xml

@@ -9,7 +9,7 @@
 	<url>http://maven.apache.org</url>
 	<properties>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
-		<spring.version>5.3.20</spring.version>
+		<spring.version>5.3.26</spring.version>
 		<aspectj.version>1.9.2</aspectj.version>
 		<mybatis.version>3.5.6</mybatis.version>
 		<druid.version>1.2.8</druid.version>