Bump pygments from 2.5.1 to 2.5.2 (#65)

Bumps [pygments](https://github.com/pygments/pygments) from 2.5.1 to 2.5.2.
- [Release notes](https://github.com/pygments/pygments/releases)
- [Changelog](https://github.com/pygments/pygments/blob/master/CHANGES)
- [Commits](https://github.com/pygments/pygments/compare/2.5.1...2.5.2)

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

Pipfile.lock

@@ -604,11 +604,11 @@
         },
         "pygments": {
             "hashes": [
-                "sha256:83ec6c6133ca6b529b7ff5aa826328fd14b5bb02a58c37f4f06384e96a0f94ab",
-                "sha256:b7949de3d396836085fea596998b135a22610bbcc4f2abfe9e448e44cbc58388"
+                "sha256:2a3fe295e54a20164a9df49c75fa58526d3be48e14aceba6d6b1e8ac0bfd6f1b",
+                "sha256:98c8aa5a9f778fcd1026a17361ddaf7330d1b7c62ae97c3bb0ae73e0b9b6b0fe"
             ],
             "index": "pypi",
-            "version": "==2.5.1"
+            "version": "==2.5.2"
         },
         "pymdown-extensions": {
             "hashes": [