Temporarily fix build on eclipse so I may work...

Signed-off-by: Joshua Castle <26531652+Kas-tle@users.noreply.github.com>

build-logic/src/main/kotlin/geyser.base-conventions.gradle.kts

@@ -1,5 +1,6 @@
 plugins {
     `java-library`
+    `eclipse`
     id("net.kyori.indra")
 }
 
@@ -35,3 +36,13 @@ tasks {
         }
     }
 }
+
+eclipse {
+    classpath.file.whenMerged {
+        (this as org.gradle.plugins.ide.eclipse.model.Classpath).entries.forEach { entry ->
+            if (entry is org.gradle.plugins.ide.eclipse.model.Library) {
+                entry.entryAttributes["module"] = false
+            }
+        }
+    }
+}