Update spring boot to v2.7.12

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.springframework.boot:spring-boot-starter-parent (source)	2.7.11 -> 2.7.12
org.springframework.boot	2.7.11 -> 2.7.12

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Release Notes

spring-projects/spring-boot

### [`v2.7.12`](https://togithub.com/spring-projects/spring-boot/releases/tag/v2.7.12) [Compare Source](https://togithub.com/spring-projects/spring-boot/compare/v2.7.11...v2.7.12) ##### :lady_beetle: Bug Fixes - Welcome page may return a 404 when an acceptable response cannot be produced [#​35552](https://togithub.com/spring-projects/spring-boot/issues/35552) - Invalid reference format error when tagging images using Podman [#​35358](https://togithub.com/spring-projects/spring-boot/issues/35358) - `FactoryBean.getObject` for non-singleton executed when resetting mocks [#​35324](https://togithub.com/spring-projects/spring-boot/issues/35324) - Can't use PEM encoded [PKCS#​8](https://togithub.com/PKCS/spring-boot/issues/8) EC keys with server.ssl.certificate-private-key [#​35322](https://togithub.com/spring-projects/spring-boot/issues/35322) - Webflux server gracefulshutdown throws NullPointerException [#​35264](https://togithub.com/spring-projects/spring-boot/issues/35264) - Health actuator mail details shows the port as -1 when using the default port [#​35247](https://togithub.com/spring-projects/spring-boot/issues/35247) - SessionRepositoryFilterConfiguration can cause early initialization of SessionRepository beans including Redis [#​35240](https://togithub.com/spring-projects/spring-boot/issues/35240) - Devtools main method search algorithm can find incorrect main method [#​35214](https://togithub.com/spring-projects/spring-boot/issues/35214) - When a WebFlux app is deployed to Cloud Foundry some metrics are lost and numerous beans are ineligible for post-processing [#​35163](https://togithub.com/spring-projects/spring-boot/issues/35163) - Liveness and readiness probes return down when lazy initialization is enabled [#​35161](https://togithub.com/spring-projects/spring-boot/issues/35161) - Treating a null Flyway-specific password as an empty string prevents the use of PGPASS for authentication [#​35110](https://togithub.com/spring-projects/spring-boot/issues/35110) - WebClient auto-configuration tries to use HttpComponentsClientHttpConnector when all required classes are not present [#​34964](https://togithub.com/spring-projects/spring-boot/issues/34964) - MinIdle and MaxValidationTime properties missing for R2DBC pools [#​34724](https://togithub.com/spring-projects/spring-boot/issues/34724) ##### :notebook_with_decorative_cover: Documentation - Polish formatting of permitAll() endpoint security Kotlin example [#​35454](https://togithub.com/spring-projects/spring-boot/pull/35454) - Wrong anchors in Maven plugin documentation [#​35371](https://togithub.com/spring-projects/spring-boot/issues/35371) - Correct list of annotations that are equivalent to `@SpringBootApplication` [#​35180](https://togithub.com/spring-projects/spring-boot/pull/35180) - Harmonize references to application.yaml files in reference docs [#​34628](https://togithub.com/spring-projects/spring-boot/pull/34628) ##### :hammer: Dependency Upgrades - Upgrade to Elasticsearch 7.17.10 [#​35339](https://togithub.com/spring-projects/spring-boot/issues/35339) - Upgrade to Hazelcast 5.1.6 [#​35440](https://togithub.com/spring-projects/spring-boot/issues/35440) - Upgrade to Johnzon 1.2.20 [#​35340](https://togithub.com/spring-projects/spring-boot/issues/35340) - Upgrade to Json-smart 2.4.11 [#​35549](https://togithub.com/spring-projects/spring-boot/issues/35549) - Upgrade to Micrometer 1.9.11 [#​35290](https://togithub.com/spring-projects/spring-boot/issues/35290) - Upgrade to Netty 4.1.92.Final [#​35441](https://togithub.com/spring-projects/spring-boot/issues/35441) - Upgrade to Reactor Bom 2020.0.32 [#​35291](https://togithub.com/spring-projects/spring-boot/issues/35291) - Upgrade to Spring Data Bom 2021.2.12 [#​35292](https://togithub.com/spring-projects/spring-boot/issues/35292) - Upgrade to Spring Integration 5.5.18 [#​35294](https://togithub.com/spring-projects/spring-boot/issues/35294) - Upgrade to Tomcat 9.0.75 [#​35442](https://togithub.com/spring-projects/spring-boot/issues/35442) ##### :heart: Contributors Thank you to all the contributors who worked on this release: [@​JunJaBoy](https://togithub.com/JunJaBoy), [@​aasaru](https://togithub.com/aasaru), [@​davin111](https://togithub.com/davin111), and [@​ivandimitrov8080](https://togithub.com/ivandimitrov8080)

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