Bump pyyaml from 5.4.1 to 6.0.2

Bumps [pyyaml](https://github.com/yaml/pyyaml) from 5.4.1 to 6.0.2.
- [Release notes](https://github.com/yaml/pyyaml/releases)
- [Changelog](https://github.com/yaml/pyyaml/blob/main/CHANGES)
- [Commits](yaml/pyyaml@5.4.1...6.0.2)

---
updated-dependencies:
- dependency-name: pyyaml
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

requirements.txt

@@ -81,7 +81,7 @@ pytz==2021.1
 PyWavelets==1.1.1
 pywin32==227
 pywinpty==0.5.7
-PyYAML==5.4.1
+PyYAML==6.0.2
 pyzmq==20.0.0
 qtconsole @ file:///tmp/build/80754af9/qtconsole_1623278325812/work
 QtPy==1.9.0