Update app.py

app.py

@@ -1,8 +1,8 @@
-pip install --upgrade pip
-pip install numpy
-pip install tensorflow-2.3.0
-pip install autokeras
-pip install opencv-python
+!pip install --upgrade pip
+!pip install numpy
+!pip install tensorflow-2.3.0
+!pip install autokeras
+!pip install opencv-python
 import numpy as np
 from tensorflow.keras.models import load_model
 from tensorflow.keras.preprocessing.image import load_img, img_to_array