fix: upgrade org.springframework:spring-context from 5.3.20 to 5.3.29

Snyk has created this PR to upgrade org.springframework:spring-context from 5.3.20 to 5.3.29.

See this package in Maven Repository:
https://mvnrepository.com/artifact/org.springframework/spring-context/

See this project in Snyk:
https://app.snyk.io/org/dataroma/project/83784d23-825c-4da0-9c38-abae541096f8?utm_source=github&utm_medium=referral&page=upgrade-pr

timbermill-java/timbermill-client/pom.xml

@@ -17,7 +17,7 @@
         <java.source-target.version>1.8</java.source-target.version>
         <timbermill.version>2.5.3</timbermill.version>
         <aspectj.version>1.9.7</aspectj.version>
-        <org.springframework.version>5.3.20</org.springframework.version>
+        <org.springframework.version>5.3.29</org.springframework.version>
     </properties>
 
     <licenses>