Fix AutoConfigureAfter for SecretsManagerAutoConfiguration

[marcindabrowski]

📢 Type of change

• Bugfix
• New feature
• Enhancement
• Refactoring

📜 Description

Fixes #1232
In version 3.2.0 SecretsManagerAutoConfiguration was added that requires bean AwsClientBuilderConfigurer, but SecretsManagerAutoConfiguration didn't added AwsAutoConfiguration in AutoConfigureAfter instead of CredentialsProviderAutoConfiguration and RegionProviderAutoConfiguration.

💡 Motivation and Context

@AutoConfigureAfter({ CredentialsProviderAutoConfiguration.class, RegionProviderAutoConfiguration.class }) was added to AwsAutoConfiguration, and AwsAutoConfiguration was put as prerequisite for SecretsManagerAutoConfiguration.

💚 How did you test it?

Added AwsAutoConfigurationTests file.

📝 Checklist

• I reviewed submitted code
• I added tests to verify changes
• I updated reference documentation to reflect the change
• All tests passing
• No breaking changes

🔮 Next steps

[maciejwalkowiak]

Thanks @marcindabrowski !