Lock Pytest to 8.0.2 (#264)

The minor version bump seems to cause issues with flakey which might not be maintained anymore (box/flaky#198)

Issue #, if available: N/A

Description of changes: Lock pytest to 8.0.2

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

Author: ananth102

test/e2e/requirements.txt

@@ -1,3 +1,4 @@
 acktest @ git+https://github.com/aws-controllers-k8s/test-infra.git@66d07f4daa2ce12d92f07cb332d5342a0aea4feb
+pytest==8.0.2
 black==20.8b1
 flaky==3.7.0