Update spring core to v5.2.7.RELEASE

[renovate]

This PR contains the following updates:

Package	Update	Change
org.springframework:spring-webmvc	patch	5.2.6.RELEASE -> 5.2.7.RELEASE
org.springframework:spring-web	patch	5.2.6.RELEASE -> 5.2.7.RELEASE
org.springframework:spring-test	patch	5.2.6.RELEASE -> 5.2.7.RELEASE
org.springframework:spring-context-support	patch	5.2.6.RELEASE -> 5.2.7.RELEASE

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Release Notes

spring-projects/spring-framework

v5.2.7.RELEASE

Compare Source

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[coveralls]

Coverage remained the same at 85.956% when pulling 6cbb5f2 on renovate/spring-core into 1796209 on master.