Maven build issues fixes

[nicolaskrier]

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I have addressed the following warnings and errors that occurred during the Maven build:

[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.springframework.ai:spring-ai-docs:jar:1.0.0-SNAPSHOT
[WARNING] 'build.plugins.plugin.version' for io.spring.maven.antora:antora-component-version-maven-plugin is missing. @ line 60, column 12
[WARNING] 'build.plugins.plugin.version' for org.antora:antora-maven-plugin is missing. @ line 38, column 12
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.springframework.ai:spring-ai-autoconfigure-retry:jar:1.0.0-SNAPSHOT
[WARNING] The expression ${parent.version} is deprecated. Please use ${project.parent.version} instead.
[WARNING] 
[WARNING] Some problems were encountered while building the effective model for org.springframework.ai:spring-ai-couchbase-store:jar:1.0.0-SNAPSHOT
[WARNING] The expression ${parent.version} is deprecated. Please use ${project.parent.version} instead.
[WARNING] 
[WARNING] It is highly recommended to fix these problems because they threaten the stability of your build.
[WARNING] 
[WARNING] For this reason, future Maven versions might no longer support building such malformed projects.
[WARNING] 
…
[ERROR] MavenReportException: Error while generating Javadoc: 
Exit code: 1
error: No public or protected classes found to document.
1 error
Command line was: /Users/my_user/.sdkman/candidates/java/21.0.7-tem/bin/javadoc @options @packages

Refer to the generated Javadoc files in '/Users/my_user/IDE/Personal_Projects/spring-ai/spring-ai-spring-boot-testcontainers/target/apidocs' dir.

org.apache.maven.reporting.MavenReportException: 
Exit code: 1
error: No public or protected classes found to document.
1 error
Command line was: /Users/my_user/.sdkman/candidates/java/21.0.7-tem/bin/javadoc @options @packages

Refer to the generated Javadoc files in '/Users/my_user/IDE/Personal_Projects/spring-ai/spring-ai-spring-boot-testcontainers/target/apidocs' dir.

    at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.doExecuteJavadocCommandLine (AbstractJavadocMojo.java:5166)
    at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.executeJavadocCommandLine (AbstractJavadocMojo.java:5051)
    at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.executeReport (AbstractJavadocMojo.java:2022)
    at org.apache.maven.plugins.javadoc.JavadocJar.doExecute (JavadocJar.java:181)
    at org.apache.maven.plugins.javadoc.AbstractJavadocMojo.execute (AbstractJavadocMojo.java:1818)
    at org.apache.maven.plugin.DefaultBuildPluginManager.executeMojo (DefaultBuildPluginManager.java:126)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute2 (MojoExecutor.java:328)
    at org.apache.maven.lifecycle.internal.MojoExecutor.doExecute (MojoExecutor.java:316)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:212)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:174)
    at org.apache.maven.lifecycle.internal.MojoExecutor.access$000 (MojoExecutor.java:75)
    at org.apache.maven.lifecycle.internal.MojoExecutor$1.run (MojoExecutor.java:162)
    at org.apache.maven.plugin.DefaultMojosExecutionStrategy.execute (DefaultMojosExecutionStrategy.java:39)
    at org.apache.maven.lifecycle.internal.MojoExecutor.execute (MojoExecutor.java:159)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:105)
    at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:73)
    at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:53)
    at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:118)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:261)
    at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:173)
    at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:101)
    at org.apache.maven.cli.MavenCli.execute (MavenCli.java:906)
    at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:283)
    at org.apache.maven.cli.MavenCli.main (MavenCli.java:206)
    at jdk.internal.reflect.DirectMethodHandleAccessor.invoke (DirectMethodHandleAccessor.java:103)
    at java.lang.reflect.Method.invoke (Method.java:580)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:255)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:201)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:361)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:314)
    at org.codehaus.classworlds.Launcher.main (Launcher.java:41)