Update dependency org.springframework.boot:spring-boot-gradle-plugin to v2.7.12

[renovate]

This PR contains the following updates:

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

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Release Notes

spring-projects/spring-boot

v2.7.12

🐞 Bug Fixes

• Welcome page may return a 404 when an acceptable response cannot be produced #​35552
• Invalid reference format error when tagging images using Podman #​35358
• FactoryBean.getObject for non-singleton executed when resetting mocks #​35324
• Can't use PEM encoded PKCS#​8 EC keys with server.ssl.certificate-private-key #​35322
• Webflux server gracefulshutdown throws NullPointerException #​35264
• Health actuator mail details shows the port as -1 when using the default port #​35247
• SessionRepositoryFilterConfiguration can cause early initialization of SessionRepository beans including Redis #​35240
• Devtools main method search algorithm can find incorrect main method #​35214
• When a WebFlux app is deployed to Cloud Foundry some metrics are lost and numerous beans are ineligible for post-processing #​35163
• Liveness and readiness probes return down when lazy initialization is enabled #​35161
• Treating a null Flyway-specific password as an empty string prevents the use of PGPASS for authentication #​35110
• WebClient auto-configuration tries to use HttpComponentsClientHttpConnector when all required classes are not present #​34964
• MinIdle and MaxValidationTime properties missing for R2DBC pools #​34724

📔 Documentation

• Polish formatting of permitAll() endpoint security Kotlin example #​35454
• Wrong anchors in Maven plugin documentation #​35371
• Correct list of annotations that are equivalent to @SpringBootApplication #​35180
• Harmonize references to application.yaml files in reference docs #​34628

🔨 Dependency Upgrades

• Upgrade to Elasticsearch 7.17.10 #​35339
• Upgrade to Hazelcast 5.1.6 #​35440
• Upgrade to Johnzon 1.2.20 #​35340
• Upgrade to Json-smart 2.4.11 #​35549
• Upgrade to Micrometer 1.9.11 #​35290
• Upgrade to Netty 4.1.92.Final #​35441
• Upgrade to Reactor Bom 2020.0.32 #​35291
• Upgrade to Spring Data Bom 2021.2.12 #​35292
• Upgrade to Spring Integration 5.5.18 #​35294
• Upgrade to Tomcat 9.0.75 #​35442

❤️ Contributors

Thank you to all the contributors who worked on this release:

@​JunJaBoy, @​aasaru, @​davin111, and @​ivandimitrov8080

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