Merge pull request #233 from OMalenfantThuot/update_requirements

update some requirements

requirements_dev.txt

@@ -1,17 +1,17 @@
-pip==21.1
+pip==21.1.3
 wheel==0.36.2
-black==21.4b1
-flake8==3.9.1
-numpy==1.20.2
-torch==1.8.1
-torchvision==0.9.1
+black==21.6b0
+flake8==3.9.2
+numpy==1.21.0
+torch==1.9.0
+torchvision==0.10.0
 twine==3.4.1
-pytest==6.2.3
-pytest-cov==2.11.1
+pytest==6.2.4
+pytest-cov==2.12.1
 pytest-sugar==0.9.4
-coveralls==3.0.1
-ase==3.21.1
+coveralls==3.1.0
+ase==3.22.0
 git+https://github.com/atomistic-machine-learning/schnetpack.git
-sphinx==3.5.4
+sphinx==4.0.2
 sphinx-rtd-theme==0.5.2
 git+https://github.com/crossnox/m2r@dev#egg=m2r