fix: add Agentic types and Dremio to _CORE_ASSETS in class_generator

Without these entries, the code generator moves Context,
ContextArtifact, ContextRepository, Skill out of core/ and
incorrectly pulls GCPDataplex into core/ via transitive
propagation. Adding them to the seed set keeps the generated
layout stable.

Author: Aryamanz29

pyatlan/generator/class_generator.py

@@ -269,6 +269,14 @@ class AssetInfo:
         "FabricDataflowEntityColumn",
         "FabricReport",
         "FabricSemanticModel",
+        "Agentic",
+        "Artifact",
+        "Skill",
+        "SkillArtifact",
+        "Context",
+        "ContextRepository",
+        "ContextArtifact",
+        "Dremio",
     }
     _IGNORE_ASSETS = {}  # type: ignore[var-annotated]