account_ebics - prevent cryptography into newest versions

Check Cryptography 41.0 which drops the support for Python 3.6

account_ebics/__manifest__.py

@@ -26,7 +26,7 @@
     "external_dependencies": {
         "python": [
             "fintech",
-            "cryptography",
+            "cryptography<=39.0.2",
         ]
     },
     "images": ["static/description/cover.png"],

requirements.txt

@@ -1,3 +1,3 @@
 # generated from manifests external_dependencies
-cryptography
+cryptography<=39.0.2
 fintech