Bump scipy from 1.6.1 to 1.6.2

Bumps [scipy](https://github.com/scipy/scipy) from 1.6.1 to 1.6.2.
- [Release notes](https://github.com/scipy/scipy/releases)
- [Commits](scipy/scipy@v1.6.1...v1.6.2)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

requirements.txt

@@ -1,5 +1,5 @@
 numpy==1.20.2
-scipy==1.6.1
+scipy==1.6.2
 FireWorks==1.9.7
 pymatgen_diffusion==2020.10.8
 monty==2021.3.3