build(deps-dev): bump py-spy from 0.3.10 to 0.3.11 in /requirements

Bumps [py-spy](https://github.com/benfred/py-spy) from 0.3.10 to 0.3.11.
- [Release notes](https://github.com/benfred/py-spy/releases)
- [Changelog](https://github.com/benfred/py-spy/blob/master/CHANGELOG.md)
- [Commits](benfred/py-spy@v0.3.10...v0.3.11)

---
updated-dependencies:
- dependency-name: py-spy
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

requirements/requirements-ci.txt

@@ -511,7 +511,7 @@ py-solc-x==1.1.0
     # via
     #   -r requirements-dev.txt
     #   raiden-contracts
-py-spy==0.3.10
+py-spy==0.3.11
     # via -r requirements-dev.txt
 pyasn1==0.4.5
     # via

requirements/requirements-dev.txt

@@ -445,7 +445,7 @@ py-solc-x==1.1.0
     # via
     #   -r requirements.txt
     #   raiden-contracts
-py-spy==0.3.10
+py-spy==0.3.11
     # via -r requirements-dev.in
 pyasn1==0.4.5
     # via