Grails 7: Update github workflow git user and email on all repositories

[jamesfredley]

GIT_USER_NAME: 'grails-build'
GIT_USER_EMAIL: 'grails-build@users.noreply.github.com'

COMMIT_EMAIL: ${{ env.GIT_USER_EMAIL }}
COMMIT_NAME: ${{ env.GIT_USER_NAME }}

Example: https://github.com/grails/grails-data-mapping/blob/9.0.x/.github/workflows/release.yml

[jamesfredley]

The following have already been updated:

https://github.com/grails/grails-doc
https://github.com/grails/gorm-hibernate5
https://github.com/grails/grails-database-migration
https://github.com/grails/gorm-mongodb
https://github.com/grails/grails-async
https://github.com/grails/grails-plugins-metadata
https://github.com/grails/scaffolding
https://github.com/grails/geb
https://github.com/grails/grails-forge
https://github.com/grails/grails-views
https://github.com/grails/grails-wrapper
https://github.com/grails/grails-async
https://github.com/grails/grails-gsp

[jdaugherty]

The majority of the repositories have been done as part of the grailsPublish rework. The following need updated still:

https://github.com/grails/grails-spring-security-oauth2
https://github.com/grails/grails-spring-security-ui
https://github.com/grails/gorm-docs
https://github.com/grails/grails-spring-security-cas
https://github.com/grails/elasticsearch-grails-plugin
https://github.com/grails/gorm-docs
https://github.com/grails/grails-testing-support
https://github.com/grails/grails-quartz

[jdaugherty]

@codeconsole completed this over the weekend