Update Black's target-version to py37

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### Description
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Black's `target-version` was still set to `['py27', 'py36']`. Set it to `[py37]` instead.

Also update Black and other pre-commit hooks and re-format with Black.

### Checklist
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This pull request is:

- [ ] A documentation / typographical error fix
	- Good to go, no issue or tests are needed
- [ ] A short code fix
	- please include the issue number, and create an issue if none exists, which
	  must include a complete example of the issue.  one line code fixes without an
	  issue and demonstration will not be accepted.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.   one line code fixes without tests will not be accepted.
- [ ] A new feature implementation
	- please include the issue number, and create an issue if none exists, which must
	  include a complete example of how the feature would look.
	- Please include: `Fixes: #<issue number>` in the commit message
	- please include tests.

**Have a nice day!**

Closes: #7536
Pull-request: https://github.com/sqlalchemy/sqlalchemy/pull/7536
Pull-request-sha: b3aedf5570d7e0ba6c354e5989835260d0591b08

Change-Id: I8be85636fd2c9449b07a8626050c8bd35bd119d5

1 files changed, 3 insertions, 3 deletions

diff --git a/lib/sqlalchemy/sql/default_comparator.py b/lib/sqlalchemy/sql/default_comparator.py
index 2bbead673..d849f8aba 100644
--- a/lib/sqlalchemy/sql/default_comparator.py
+++ b/lib/sqlalchemy/sql/default_comparator.py
@@ -36,7 +36,7 @@ def _boolean_compare(
     _python_is_types=(util.NoneType, bool),
     _any_all_expr=False,
     result_type=None,
-    **kwargs
+    **kwargs,
 ):
 
     if result_type is None:
@@ -215,7 +215,7 @@ def _match_impl(expr, op, other, **kw):
         negate=operators.not_match_op
         if op is operators.match_op
         else operators.match_op,
-        **kw
+        **kw,
     )
 
 
@@ -275,7 +275,7 @@ def _regexp_match_impl(expr, op, pattern, flags, **kw):
         negate=operators.not_regexp_match_op
         if op is operators.regexp_match_op
         else operators.regexp_match_op,
-        **kw
+        **kw,
     )