Add gradle-tooling-api to shell script classpath

[matrei]

Related to gh-13760

[matrei]

This gets us past the initial java.lang.NoClassDefFoundError: org/gradle/tooling/BuildCancelledExceptionproblem

$ ./gradlew assemble
$ unzip ./build/distributions/grails-7.0.0-SNAPSHOT.zip
$ ./grails-7.0.0-SNAPSHOT/bin/grails --version
| Grails Version: 7.0.0-SNAPSHOT
| JVM Version: 17.0.11

But when running grails it chokes on another problem:

$ ./grails-7.0.0-SNAPSHOT/bin/grails --stacktrace
| Error Error occurred running Grails CLI: Could not find artifact org.grails.profiles:angular:jar:${profiles-angular.version} in grailsCentral (https://repo.grails.org/grails/core) (NOTE: Stack trace has been filtered. Use --verbose to see entire trace.)
org.eclipse.aether.transfer.ArtifactNotFoundException: Could not find artifact org.grails.profiles:angular:jar:${profiles-angular.version} in grailsCentral (https://repo.grails.org/grails/core)
        at org.eclipse.aether.connector.basic.ArtifactTransportListener.transferFailed(ArtifactTransportListener.java:42)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run(BasicRepositoryConnector.java:417)
        at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get(BasicRepositoryConnector.java:260)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:537)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:449)
        at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolveArtifacts(DefaultArtifactResolver.java:261)
        at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveDependencies(DefaultRepositorySystem.java:353)
        at org.grails.cli.compiler.grape.MavenResolverGrapeEngine.resolve(MavenResolverGrapeEngine.java:292)
        at org.grails.cli.compiler.grape.MavenResolverGrapeEngine.grab(MavenResolverGrapeEngine.java:115)
        at org.grails.cli.compiler.grape.MavenResolverGrapeEngine.grab(MavenResolverGrapeEngine.java:107)
        at org.grails.cli.profile.repository.MavenProfileRepository.getAllProfiles(MavenProfileRepository.groovy:135)
        at org.grails.cli.GrailsCli.execute(GrailsCli.groovy:240)
        at org.grails.cli.GrailsCli.main(GrailsCli.groovy:160)
| Error Error occurred running Grails CLI: Could not find artifact org.grails.profiles:angular:jar:${profiles-angular.version} in grailsCentral (https://repo.grails.org/grails/core)

It seems the bom version variables are not resolved.