Update dependencies (#940)

* Remove dependency on mysql:mysql-connector-java

* Update spring boot version to 3.3.6

Author: KochTobi

pom.xml

@@ -41,7 +41,7 @@
   <parent>
     <groupId>org.springframework.boot</groupId>
     <artifactId>spring-boot-starter-parent</artifactId>
-    <version>3.3.5</version>
+    <version>3.3.6</version>
   </parent>
 
   <repositories>

user-interface/pom.xml

@@ -131,11 +131,6 @@
       <groupId>com.mysql</groupId>
       <artifactId>mysql-connector-j</artifactId>
     </dependency>
-    <dependency>
-      <groupId>mysql</groupId>
-      <artifactId>mysql-connector-java</artifactId>
-      <version>[8.0.33,)</version>
-    </dependency>
     <dependency>
       <groupId>com.h2database</groupId>
       <artifactId>h2</artifactId>