Revert "Switch to compatible pytest dependency versioning"

This reverts commit 1a87d00.

Author: m0rl

Pipfile

@@ -8,7 +8,7 @@ antlr4-python3-runtime = "~=4.10"
 python-dateutil = "==2.8.2"
 
 [dev-packages]
-pytest = "~=7.1"
+pytest = "==7.1.1"
 pytest-cov = "==3.0.0"
 freezegun = "==1.2.2"
 pyyaml = "==6.0.1"