Revert "Adapt to SnowflakeId.generateId() switching its return type from String to long"

This reverts commit 6449282.

Author: jkschneider

rewrite-core/src/main/java/org/openrewrite/rpc/RewriteRpc.java

@@ -154,7 +154,7 @@ private <P> String maybeUnwrapExecutionContext(P p) {
         while (p2 instanceof DelegatingExecutionContext) {
             p2 = ((DelegatingExecutionContext) p2).getDelegate();
         }
-        String pId = localObjectIds.computeIfAbsent(p2, p3 -> Long.toString(SnowflakeId.generateId()));
+        String pId = localObjectIds.computeIfAbsent(p2, p3 -> SnowflakeId.generateId());
         if (p2 instanceof ExecutionContext) {
             ((ExecutionContext) p2).putMessage("org.openrewrite.rpc.id", pId);
         }
@@ -188,7 +188,7 @@ List<String> getCursorIds(@Nullable Cursor cursor) {
             cursorIds = cursor.getPathAsStream().map(c -> {
                 String id = c instanceof Tree ?
                         ((Tree) c).getId().toString() :
-                        localObjectIds.computeIfAbsent(c, c2 -> Long.toString(SnowflakeId.generateId()));
+                        localObjectIds.computeIfAbsent(c, c2 -> SnowflakeId.generateId());
                 localObjects.put(id, c);
                 return id;
             }).collect(Collectors.toList());

rewrite-core/src/main/java/org/openrewrite/rpc/request/PrepareRecipe.java

@@ -37,7 +37,7 @@ public static class Handler extends JsonRpcMethod<PrepareRecipe> {
         @Override
         protected Object handle(PrepareRecipe request) throws Exception {
             Recipe recipe = new RecipeLoader(null).load(request.getId(), request.getOptions());
-            String instanceId = Long.toString(SnowflakeId.generateId());
+            String instanceId = SnowflakeId.generateId();
             preparedRecipes.put(instanceId, recipe);
             return new PrepareRecipeResponse(instanceId, recipe.getDescriptor(),
                     "edit:" + instanceId,