chore(deps): Bump org.springframework:spring-context

Bumps [org.springframework:spring-context](https://github.com/spring-projects/spring-framework) from 5.3.39 to 6.1.20.
- [Release notes](https://github.com/spring-projects/spring-framework/releases)
- [Commits](spring-projects/spring-framework@v5.3.39...v6.1.20)

---
updated-dependencies:
- dependency-name: org.springframework:spring-context
  dependency-version: 6.1.20
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

iotdb-spring-boot-starter/pom.xml

@@ -35,7 +35,7 @@
         <maven.compiler.target>17</maven.compiler.target>
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <spring-boot.version>3.4.5</spring-boot.version>
-        <spring.version>6.2.6</spring.version>
+        <spring.version>6.1.20</spring.version>
     </properties>
     <dependencyManagement>
         <dependencies>

pom.xml

@@ -168,7 +168,7 @@
         <!-- This is the matching version of spring-boot for spring 5.3.30 -->
         <spring-boot.version>2.7.18</spring-boot.version>
         <!-- This is the last version to support the javax namespace -->
-        <spring.version>5.3.39</spring.version>
+        <spring.version>6.1.20</spring.version>
         <sqlite.version>3.49.1.0</sqlite.version>
         <!-- This was the last version to support Java 8 -->
         <swagger.version>1.6.14</swagger.version>