Startup without authentication fails with `SessionManager has not been registered`

[M-Whitaker]

Describe the bug
When using spring cloud 2023.0.0-M2 and using vault agents I get this stack trace:

config file:

spring.cloud:
    vault:
      scheme: http
      host: localhost
      authentication: none

ava.lang.IllegalStateException: org.springframework.vault.authentication.SessionManager has not been registered
	at org.springframework.boot.DefaultBootstrapContext.lambda$get$1(DefaultBootstrapContext.java:88)
	at org.springframework.boot.DefaultBootstrapContext.getOrElseThrow(DefaultBootstrapContext.java:109)
	at org.springframework.boot.DefaultBootstrapContext.get(DefaultBootstrapContext.java:88)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.lambda$registerSecretLeaseContainer$10(VaultConfigDataLoader.java:255)
	at org.springframework.boot.DefaultBootstrapContext.getInstance(DefaultBootstrapContext.java:119)
	at org.springframework.boot.DefaultBootstrapContext.getOrElseThrow(DefaultBootstrapContext.java:111)
	at org.springframework.boot.DefaultBootstrapContext.get(DefaultBootstrapContext.java:88)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.lambda$loadConfigData$1(VaultConfigDataLoader.java:162)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.createConfigData(VaultConfigDataLoader.java:231)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.loadConfigData(VaultConfigDataLoader.java:162)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.load(VaultConfigDataLoader.java:139)
	at org.springframework.cloud.vault.config.VaultConfigDataLoader.load(VaultConfigDataLoader.java:92)
	at org.springframework.boot.context.config.ConfigDataLoaders.load(ConfigDataLoaders.java:96)
	at org.springframework.boot.context.config.ConfigDataImporter.load(ConfigDataImporter.java:132)
	at org.springframework.boot.context.config.ConfigDataImporter.resolveAndLoad(ConfigDataImporter.java:87)
	at org.springframework.boot.context.config.ConfigDataEnvironmentContributors.withProcessedImports(ConfigDataEnvironmentContributors.java:115)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processWithProfiles(ConfigDataEnvironment.java:313)
	at org.springframework.boot.context.config.ConfigDataEnvironment.processAndApply(ConfigDataEnvironment.java:234)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:96)
	at org.springframework.boot.context.config.ConfigDataEnvironmentPostProcessor.postProcessEnvironment(ConfigDataEnvironmentPostProcessor.java:89)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEnvironmentPreparedEvent(EnvironmentPostProcessorApplicationListener.java:109)
	at org.springframework.boot.env.EnvironmentPostProcessorApplicationListener.onApplicationEvent(EnvironmentPostProcessorApplicationListener.java:94)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.doInvokeListener(SimpleApplicationEventMulticaster.java:178)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:171)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:149)
	at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:137)
	at org.springframework.boot.context.event.EventPublishingRunListener.multicastInitialEvent(EventPublishingRunListener.java:136)
	at org.springframework.boot.context.event.EventPublishingRunListener.environmentPrepared(EventPublishingRunListener.java:81)
	at org.springframework.boot.SpringApplicationRunListeners.lambda$environmentPrepared$2(SpringApplicationRunListeners.java:64)
	at java.base/java.lang.Iterable.forEach(Iterable.java:75)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:118)
	at org.springframework.boot.SpringApplicationRunListeners.doWithListeners(SpringApplicationRunListeners.java:112)
	at org.springframework.boot.SpringApplicationRunListeners.environmentPrepared(SpringApplicationRunListeners.java:63)
	at org.springframework.boot.SpringApplication.prepareEnvironment(SpringApplication.java:365)
	at org.springframework.boot.SpringApplication.run(SpringApplication.java:317)

This isn't happening in spring cloud 2022 & from my understand the org.springframework.vault.authentication.SessionManager is not required when no auth needed

[mp911de]

Thanks a lot for bringing this to our attention. We added a dependency to SecretLeaseContainer to listen for authentication events. We need to fix this.