Merge pull request #6 from CUBETIQ/renovate/flask-2.x

Update dependency flask to v2.2.3

Author: sombochea

requirements.txt

@@ -1,6 +1,6 @@
 python-barcode==0.14.0
 pyqrcode==1.2.1
-flask==2.2.2
+flask==2.2.3
 environs==9.5.0
 pypng==0.20220715.0
 Pillow==9.4.0