Issue description
When generating a Grails 7.0.0 zip from https://start.grails.org and running for example bootRun, the following error occurs:
Execution failed for task ':processResources'.
> Invalid Timestamp -3600000 for 'file '/home/mattias/Downloads/httpclienttest/grails-app/conf/spring''.
Updating grails-app/conf/spring/resources.groovy fixes that.
Execution failed for task ':processResources'.
> Invalid Timestamp -3600000 for 'file '/home/mattias/Downloads/httpclienttest/grails-app/views/layouts''.
Updating grails-app/views/layouts/main.gsp fixes that.