Bump pre-commit from 1.15.1 to 1.15.2

Bumps [pre-commit](https://github.com/pre-commit/pre-commit) from 1.15.1 to 1.15.2.
- [Release notes](https://github.com/pre-commit/pre-commit/releases)
- [Changelog](https://github.com/pre-commit/pre-commit/blob/master/CHANGELOG.md)
- [Commits](pre-commit/pre-commit@v1.15.1...v1.15.2)

Signed-off-by: dependabot[bot] <support@dependabot.com>

setup.py

@@ -17,7 +17,7 @@
     "lint": [
         "flake8==3.7.7",
         'flake8-bugbear==19.3.0; python_version >= "3.5"',
-        "pre-commit==1.15.1",
+        "pre-commit==1.15.2",
     ],
 }
 EXTRAS_REQUIRE["dev"] = EXTRAS_REQUIRE["tests"] + EXTRAS_REQUIRE["lint"] + ["tox"]