Bump hacking

hacking 3.0.x is too old. This also removes the note about old behavior
of pip which has been changed in recent versions.

Notes:
- A few errors newly detected are also fixed.

- This also fixes the compatibility with flake8 >= 3.0 because flake8
  is also bumped when we bump hacking.

Change-Id: I7fa87ed77bb39945ee5464692b7ef3d25c046127

designateclient/hacking/checks.py

@@ -15,7 +15,6 @@
 import re
 
 from hacking import core
-import pycodestyle
 
 # D701: Default parameter value is a mutable type
 # D702: Log messages require translation
@@ -49,8 +48,8 @@ no_line_continuation_backslash_re = re.compile(r'.*(\\)\n')
 
 
 @core.flake8ext
-def mutable_default_arguments(physical_line, logical_line, filename):
-    if pycodestyle.noqa(physical_line):
+def mutable_default_arguments(logical_line, filename, noqa):
+    if noqa:
         return
 
     if mutable_default_argument_check.match(logical_line):

requirements.txt

@@ -2,9 +2,6 @@
 # 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.
 
-# 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.
 cliff!=2.9.0,>=2.8.0 # Apache-2.0
 jsonschema>=3.2.0 # MIT
 osc-lib>=1.8.0 # Apache-2.0

test-requirements.txt

@@ -1,8 +1,5 @@
-# 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.
 # Hacking already pins down pep8, pyflakes and flake8
-hacking>=3.0.1,<3.1.0 # Apache-2.0
+hacking>=6.1.0,<6.2.0 # Apache-2.0
 coverage!=4.4,>=4.0 # Apache-2.0
 oslo.config>=5.2.0 # Apache-2.0
 oslotest>=3.2.0 # Apache-2.0