bump cryptography package to fix CVE-2022-3786 and CVE-2022-3602

https://cryptography.io/en/latest/changelog/#v38-0-3

Change-Id: I522e4a030cec53623be36a5e56d4a686877d7e8f
Related-to: MKE-9302
diff --git a/requirements.txt b/requirements.txt
index 4a55cdb..dddd94f 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -5,7 +5,7 @@
 cffi==1.14.5
 chardet==4.0.0
 click==8.0.1
-cryptography==38.0.0
+cryptography==38.0.3
 enum34==1.1.10
 Flask==2.0.1
 idna==2.10