Bump ipython-sql from 0.3.9 to 0.4.0 (#272)

Bumps [ipython-sql](https://github.com/catherinedevlin/ipython-sql) from 0.3.9 to 0.4.0.
- [Release notes](https://github.com/catherinedevlin/ipython-sql/releases)
- [Changelog](https://github.com/catherinedevlin/ipython-sql/blob/master/NEWS.rst)
- [Commits](https://github.com/catherinedevlin/ipython-sql/commits)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Co-authored-by: dependabot-preview[bot] <27856297+dependabot-preview[bot]@users.noreply.github.com>

Author: dependabot-preview[bot]

tcsocket/requirements.txt

@@ -12,5 +12,5 @@ raven==6.10.0
 uvloop==0.14.0
 ipython==7.15.0
 pgcli==3.0.0
-ipython-sql==0.3.9
+ipython-sql==0.4.0
 yarl==1.4.2