Migrate Gradle to 7.6.4+ for Spring Boot 3.4

Proprietary

Spring Boot 3.4 requires Gradle 7.6.4.

io.moderne.java.spring.boot3.UpgradeGradle7ForSpringBoot_3_4

mod run . --recipe=io.moderne.java.spring.boot3.UpgradeGradle7ForSpringBoot_3_4

Install it once from Recipe actions, then run it on every repository under the current directory. New to the Moderne CLI? Set it up.