External dependencies upgrade - Spring Boot 2.7.12 and Spring Cloud 2021.0.7

[Netyyyy]

Updates external dependencies to align with Spring Boot version 2.7.12 from 2.7.11 and Spring Cloud version 2021.0.7 from 2021.0.7.

Release notes

Sourced from spring-boot releases.

🐞 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

This PR is created by GitHub Actions: https://github.com/Azure/spring-cloud-azure-tools/actions/runs/5306915873

[azure-sdk]

API change check

API changes are not detected in this pull request.