Bump pycodestyle from 2.5.0 to 2.7.0 in /tools

[dependabot-preview]

Bumps pycodestyle from 2.5.0 to 2.7.0.

Changelog

Sourced from pycodestyle's changelog.

2.7.0 (2021-03-14)

Changes:

• Fix physical checks (such as W191) at end of file. PR #961.
• Add --indent-size option (defaulting to 4). PR #970.
• W605: fix escaped crlf false positive on windows. PR #976.

2.6.0 (2020-05-11)

Announcements:

• Anthony Sottile (@​asottile) joined the team as a core developer. 🎉

Changes:

• E306: fix detection inside async def. PR #929.
• E301: fix regression disallowing decorated one-liners. PR #927.
• E714: fix false positive with chained is not. PR #931.

2.6.0a1 (2020-04-23)

New checks:

• E225: require whitespace around and in is and or. PR #847.

Changes:

• E117: fix indentation using tabs by treating as 8-space indents. PR #837.
• E721: fix false positive with names containg istype. PR #850.
• E741: allow l as a named argument in a function call. PR #853.
• E302: fix false-negative with decorated functions. PR #859.
• W504: ellipsis (...) is no longer treated as a binary operator. PR #875.
• E402: allow with, if, elif, else to guard imports. PR #834.
• Add support for assignment expressions := (PEP 572). PR #879.
• Add support for positional-only arguments / (PEP 570). PR #872, #918.
• Add support for python 3.8.
• Add support for matrix multiplication operator @ (PEP 465). PR #897.
• Support visual indent for continuation lines for with / assert / raise. PR #912.
• E302: allow two blank lines after a block of one-liners. PR #913.
• E302: allow two-and-fewer newlines at the top of the file. PR #919.

Commits

• 930e2ca Merge pull request #978 from asottile/2_7_0
• 62003f6 2.7.0
• c47f5c1 Merge pull request #976 from asottile/crlf_at_beginning_of_file
• dde53f6 use tokenize.open to avoid incorrect line endings at beginning of file
• 9dd78b9 Merge pull request #970 from bukzor/multi-indent
• c060b1c Support for space indents with size other than 4
• 07b113b Merge pull request #968 from asottile/github_actions
• a6e25e1 use github actions instead of travis-ci
• a35d409 Merge pull request #967 from JPeterMugaas/wintests
• 8dcb757 Fix tests to handle paths in Windows. NormalizePath works properly but the t...
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[SumoSourabh]

Closing the pull request as the dependency has been updated by #455