SpringBoot Raise the minimum supported version of Gradle to 7.5

This is blocked until 7.5 has been released.

Comment From: mhalbritter

I think we missed to adapt org.springframework.boot.gradle.plugin.SpringBootPlugin#verifyGradleVersion. It still reads:

    private void verifyGradleVersion() {
        GradleVersion currentVersion = GradleVersion.current();
        if (currentVersion.compareTo(GradleVersion.version("7.4")) < 0) {
            throw new GradleException("Spring Boot plugin requires Gradle 7.x (7.4 or later). "
                    + "The current version is " + currentVersion);
        }
    }

Comment From: wilkinsona

Good catch. We should fix that. Can you please open an issue for it?