Update Gradle to 8.2.1 (#2087)

This includes removing (hopefully temporarily) the gradle-lint plugin as
it is incompatible with various Gradle versions (see
https://github.com/nebula-plugins/gradle-lint-plugin/issues/393). This
is somewhat unfortunate since the plugin is useful for removing unused
dependencies, though with the relatively small amount of Gradle code we
write hopefully it will not be missed much. If Nebula changes their
code to be compatible with Gradle 8+, we can re-add it easily.

This upgrade means we can remove the code added in 342051e1.

buildSrc/src/main/java/google/registry/gradle/plugin/ReportUploader.java

@@ -143,7 +143,7 @@ public class ReportUploader extends DefaultTask {
           .getAsMap()
           .forEach(
               (type, report) -> {
-                File destination = report.getDestination();
+                File destination = report.getOutputLocation().get().getAsFile();
                 // The destination could be a file, or a directory. If it's a directory - the Report
                 // could have created multiple files - and we need to know to which one of those to
                 // link.