change maintenance options into get reuqests

app/main.py

@@ -221,11 +221,11 @@ def check_systems(db: Session = Depends(get_db)):
     return status(db)
 
 
-@app.delete("/maintenance/clear_session_artifacts")
+@app.get("/maintenance/clear_session_artifacts")
 def clear_session_db_and_remove_files(hash: str, db: Session = Depends(get_db)):
     return crud.delete_cocal_session_by_hash(db, hash)
 
 
-@app.delete("/maintenance/clear_all_sessions")
+@app.get("/maintenance/clear_all_sessions")
 def clear_ALL_sessions(db: Session = Depends(get_db)):
     return crud.delete_all_cocal_sessions(db)