chore: bump version to 8.5.2

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Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: jsbattig

src/code_indexer/__init__.py

@@ -6,5 +6,5 @@
 HNSW graph indexing (O(log N) complexity).
 """
 
-__version__ = "8.5.1"
+__version__ = "8.5.2"
 __author__ = "Seba Battig"