Bump mypy from 1.5.1 to 1.6.0 (#502)

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

requirements-dev.txt

@@ -1,3 +1,3 @@
 -r requirements.txt
 
-mypy==1.5.1
+mypy==1.6.0