Update .gitignore

.gitignore

 *.onnx
+lab-4/task_2_faces/
+lab-4/task_3_1_references/
+lab-4/task_3_2_references/
+lab-4/task_2_faiss_index.index
+lab-4/task_2_names.npy
+lab-4/task_2_staff_photo.csv
+lab-4/task_3_1_cache/dir_hash.txt
+lab-4/task_3_1_cache/embeddings_cache.pkl
 
 # Created by https://www.toptal.com/developers/gitignore/api/visualstudiocode,python,macos,windows,jupyternotebooks
 # Edit at https://www.toptal.com/developers/gitignore?templates=visualstudiocode,python,macos,windows,jupyternotebooks
@@ -264,4 +272,4 @@ $RECYCLE.BIN/
 # Windows shortcuts
 *.lnk
 
-# End of https://www.toptal.com/developers/gitignore/api/visualstudiocode,python,macos,windows,jupyternotebooks
\ No newline at end of file
+# End of https://www.toptal.com/developers/gitignore/api/visualstudiocode,python,macos,windows,jupyternotebooks