Update dependency org.grails:grails-gradle-plugin to v5.3.1

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
org.grails:grails-gradle-plugin	5.3.0 -> 5.3.1

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Release Notes

grails/grails-gradle-plugin (org.grails:grails-gradle-plugin)

v5.3.1: 5.3.1

What's Changed

• Update to Grails 5.3.4 @​puneetbehl (#​262)
• Update default Micronaut version to 3.8.8 @​puneetbehl (#​261)
• Upgrade snakeyaml, grails and spring boot @​guillermocalvo (#​253)

Contributors

@​guillermocalvo and @​puneetbehl

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