Update plugin org.springframework.boot to v3.3.1

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.springframework.boot (source)	3.3.0 -> 3.3.1

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Release Notes

spring-projects/spring-boot (org.springframework.boot)

### [`v3.3.1`](https://togithub.com/spring-projects/spring-boot/compare/v3.3.0...v3.3.1)

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