build(deps-dev): bump pylint from 2.5.3 to 2.6.0

Bumps [pylint](https://github.com/PyCQA/pylint) from 2.5.3 to 2.6.0.
- [Release notes](https://github.com/PyCQA/pylint/releases)
- [Changelog](https://github.com/PyCQA/pylint/blob/master/ChangeLog)
- [Commits](https://github.com/PyCQA/pylint/compare/pylint-2.5.3...pylint-2.6.0)

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

Pipfile.lock

@@ -244,11 +244,11 @@
         },
         "pylint": {
             "hashes": [
-                "sha256:7dd78437f2d8d019717dbf287772d0b2dbdfd13fc016aa7faa08d67bccc46adc",
+                "sha256:bb4a908c9dadbc3aac18860550e870f58e1a02c9f2c204fdf5693d73be061210",
-                "sha256:d0ece7d223fe422088b0e8f13fa0a1e8eb745ebffcb8ed53d3e95394b6101a1c"
+                "sha256:bfe68f020f8a0fece830a22dd4d5dddb4ecc6137db04face4c3420a46a52239f"
             ],
             "index": "pypi",
-            "version": "==2.5.3"
+            "version": "==2.6.0"
         },
         "pylint-import-requirements": {
             "hashes": [