External dependencies upgrade - Spring Boot 2.7.15 and Spring Cloud 2021.0.8

[Netyyyy]

Updates external dependencies to align with Spring Boot version 2.7.15 from 2.7.14 and Spring Cloud version 2021.0.8 from 2021.0.8.

Release notes

Sourced from spring-boot releases.

🐞 Bug Fixes

• Artemis ConnectionFactory is not configured when CachingConnectionFactory is missing and enabled properties are false #36767
• server.max-http-request-header-size doesn't affect Netty server with http2 enabled #36766
• LogbackLoggingSystem does not report suppressed exception details #36645
• RabbitMQ smoke test is missing a test #36610
• Tomcat warns about a missing +/- prefix when enabling multiple protocols through server.ssl.enabled-protocols #36572
• Descriptions of started and ready time metrics contain time units but the unit may change when the metrics are exported #36507
• management.metrics.export.wavefront properties are incomplete #36498
• management.metrics.export.signalfx properties are incomplete #36497
• management.metrics.export.atlas properties are incomplete #36496
• Script-based database initialization fails with an unhelpful error message when configured with a resource that points to a directory #36386
• JobLauncherApplicationRunner returns a success exit code even when no jobs have been run #36060
• DatabaseDriver swallows real exception #34728
• Application Context initialized twice during test when exception thrown during initialization #24888

📔 Documentation

• Maven plugin docs contain invalid parameter for image building #37048
• Align javadoc of AbstractFilterRegistrationBean#setDispatcherTypes #36965
• Update RestTemplateBuilder#defaultHeader javadoc to reference correct client-side HTTP request class #36614
• @since is missing from javadoc of values added to JavaVersion since its introduction #36608
• Document that server.forward-headers-strategy property defaults to native when running on Kubernetes #36564
• Clarify the effect of using @EnableWebMvc #36506
• Documentation of spring.redis.url incorrectly states that it does not override spring.redis.user #36477
• Improve documentation to describe how @EntityScan and @Enable?Repositories can be used to tune scanning #36282
• Document that scripts for database initialization are optional by default and how they can be made mandatory #36176
• Document @DataR2dbcTest support #35014
• Update expected size of the jar file in the first application getting started documentation #34514
• Improve documentation of spring.cache.type=none #33694
• Clarify that spring.security.filter properties only apply to servlet-based web apps #33551
• Describe quirks of JUL and Log4j2 in the javadoc of OutputCaptureExtension #32562
• Documentation describes how to opt in to using the path pattern parser but it's now the default #32557
• Clarify table that shows how logging properties are transferred to system properties #32160
• Rework Working with NoSQL Technologies to clarify which stores are supported by Spring Data #29694
• Clarify how nested directories are treated for configtree with wildcards #28203
• Document defaults for spring.mvc.format.* and spring.webflux.format.* properties #30041

🔨 Dependency Upgrades

• Upgrade to Elasticsearch 7.17.12 #36870
• Upgrade to Groovy 3.0.19 #37055
• Upgrade to MariaDB 3.1.4 #36394
• Upgrade to Micrometer 1.9.14 #36824
• Upgrade to Netty 4.1.97.Final #37085
• Upgrade to Reactor Bom 2020.0.35 #36825
• Upgrade to Spring AMQP 2.4.15 #36826
• Upgrade to Spring Batch 4.3.9 #36827
• Upgrade to Spring Data Bom 2021.2.15 #36828
• Upgrade to Tomcat 9.0.79 #36992
• Upgrade to Undertow 2.2.26.Final #37029

❤️ Contributors

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

@MahatmaFatalError, @NersesAM, @chicobento, @dependabot[bot], @dreis2211, @eddumelendez, @elevne, @fzyzcjy, @itsAkshayDubey, @izeye, @msobeck, @rob-valor, @spa-abaudat, and @vpavic

This PR is created by GitHub Actions: https://github.com/Azure/spring-cloud-azure-tools/actions/runs/5970243759

[azure-sdk]

API change check

API changes are not detected in this pull request.