fix: set PYTHONHASHSEED env variable to fixed value to fix intermittent failures in release pipeline (#3339)

Co-authored-by: Basil Beirouti <[email protected]>

Author: BasilBeirouti

tox.ini

@@ -59,13 +59,16 @@ markers =
     timeout: mark a test as a timeout.
 
 [testenv]
+setenv =
+    PYTHONHASHSEED=42
 pip_version = pip==21.3
 passenv =
     AWS_ACCESS_KEY_ID
     AWS_SECRET_ACCESS_KEY
     AWS_SESSION_TOKEN
     AWS_CONTAINER_CREDENTIALS_RELATIVE_URI
     AWS_DEFAULT_REGION
+    PYTHONHASHSEED
 # {posargs} can be passed in by additional arguments specified when invoking tox.
 # Can be used to specify which tests to run, e.g.: tox -- -s
 commands =