fix: memoize memory leak (#5137)

Memoize was using an object as a cache key whose identity kept changing.
Thus it never returned a cache hit and kept storing new objects in cache.
With this fixed, memory consumption becomes a lot more reasonable, plus the cache actually yields the desired performance benefits.

core/src/tasks/base.ts

@@ -160,7 +160,7 @@ export abstract class BaseTask<O extends ValidResultType = ValidResultType> exte
   /**
    * Wrapper around resolveProcessDependencies() that memoizes the results and applies filters.
    */
-  @Memoize()
+  @Memoize((params: ResolveProcessDependenciesParams<O>) => (params.status ? params.status.state : null))
   getProcessDependencies(params: ResolveProcessDependenciesParams<O>): BaseTask[] {
     if (this.skipDependencies) {
       return []