Upgrade versions

.mvn/jvm.config

@@ -0,0 +1 @@
+--add-exports jdk.compiler/com.sun.tools.javac.api=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.file=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.parser=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.tree=ALL-UNNAMED --add-exports jdk.compiler/com.sun.tools.javac.util=ALL-UNNAMED

pom.xml

@@ -7,7 +7,7 @@
     <parent>
         <groupId>org.springframework.boot</groupId>
         <artifactId>spring-boot-starter-parent</artifactId>
-        <version>3.1.5</version>
+        <version>3.2.1</version>
         <relativePath/> <!-- lookup parent from repository -->
     </parent>
     <groupId>org.testcontainers</groupId>
@@ -16,8 +16,8 @@
     <name>testcontainers-showcase</name>
 
     <properties>
-        <java.version>17</java.version>
-        <testcontainers.version>1.19.1</testcontainers.version>
+        <java.version>21</java.version>
+        <testcontainers.version>1.19.3</testcontainers.version>
         <mockserver-netty.version>5.13.2</mockserver-netty.version>
         <webjars-locator.version>0.46</webjars-locator.version>
         <bootstrap.version>5.2.2</bootstrap.version>
@@ -170,13 +170,13 @@
             <plugin>
                 <groupId>com.diffplug.spotless</groupId>
                 <artifactId>spotless-maven-plugin</artifactId>
-                <version>2.37.0</version>
+                <version>2.41.1</version>
                 <configuration>
                     <java>
                         <importOrder />
                         <removeUnusedImports />
                         <palantirJavaFormat>
-                            <version>2.30.0</version>
+                            <version>2.38.0</version>
                         </palantirJavaFormat>
                         <formatAnnotations />
                     </java>