Revert "Pin PyYAML to 6.0.1"

This reverts commit 7dadf368cc74aeed500a7e877e3a058621afc530.

Reason for revert: Didn't fix the problem, broke a different way

Change-Id: I0bb0c427d23f5c34c3ced671841b9c0df2e0bd6a
diff --git a/python-requirements.txt b/python-requirements.txt
index f6d2e5f..88e4ca1 100644
--- a/python-requirements.txt
+++ b/python-requirements.txt
@@ -36,7 +36,7 @@
 psutil
 pyfzf
 pyserial
-pyyaml==6.0.1
+pyyaml
 requests
 robotframework==6.0.2
 scipy