Bump hacking
hacking 3.0.x is too old. Bump it to the version currently used in
tempest repo.
Also remove the note about old pip's behavior because recent pip does
not require specific order.
Depends-on: https://review.opendev.org/c/openstack/tempest/+/906634
Change-Id: I9a7760dcbcba15213deaa03e3c2a5f42446905d1
diff --git a/requirements.txt b/requirements.txt
index 67f303d..24faa8c 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -1,6 +1,6 @@
-# The order of packages is significant, because pip processes them in the order
-# of appearance. Changing the order has an impact on the overall integration
-# process, which may cause wedges in the gate later.
+# Requirements lower bounds listed here are our best effort to keep them up to
+# date but we do not test them so no guarantee of having them all correct. If
+# you find any incorrect lower bounds, let us know or propose a fix.
pbr!=2.1.0,>=2.0.0 # Apache-2.0