[pre-commit.ci] pre-commit autoupdate (#32)

* [pre-commit.ci] pre-commit autoupdate

updates:
- [github.com/psf/black: 21.5b2 → 21.6b0](psf/black@21.5b2...21.6b0)
- [github.com/pre-commit/mirrors-mypy: v0.812 → v0.902](pre-commit/mirrors-mypy@v0.812...v0.902)

* should fix mypy

Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: malmans2 <mattia.almansi@jhu.edu>

Author: pre-commit-ci[bot]

.pre-commit-config.yaml

@@ -17,7 +17,7 @@ repos:
       - id: isort
 
   - repo: https://github.com/psf/black
-    rev: 21.5b2
+    rev: 21.6b0
     hooks:
       - id: black
 
@@ -37,10 +37,11 @@ repos:
        - id: darglint
 
   - repo: https://github.com/pre-commit/mirrors-mypy
-    rev: v0.812
+    rev: v0.902
     hooks:
       - id: mypy
         exclude: docs
+        additional_dependencies: [types-pkg_resources]
 
   - repo: https://github.com/PyCQA/doc8
     rev: 0.9.0a1