fix(deps): update pyyaml requirement from 5.4.1 to 6.0

[dependabot]

Updates the requirements on pyyaml to permit the latest version.

Changelog

Sourced from pyyaml's changelog.

6.0 (2021-10-13)

• yaml/pyyaml#327 -- Change README format to Markdown
• yaml/pyyaml#483 -- Add a test for YAML 1.1 types
• yaml/pyyaml#497 -- fix float resolver to ignore . and ._
• yaml/pyyaml#550 -- drop Python 2.7
• yaml/pyyaml#553 -- Fix spelling of “hexadecimal”
• yaml/pyyaml#556 -- fix representation of Enum subclasses
• yaml/pyyaml#557 -- fix libyaml extension compiler warnings
• yaml/pyyaml#560 -- fix ResourceWarning on leaked file descriptors
• yaml/pyyaml#561 -- always require Loader arg to yaml.load()
• yaml/pyyaml#564 -- remove remaining direct distutils usage

5.4.1 (2021-01-20)

• yaml/pyyaml#480 -- Fix stub compat with older pyyaml versions that may unwittingly load it

5.4 (2021-01-19)

• yaml/pyyaml#407 -- Build modernization, remove distutils, fix metadata, build wheels, CI to GHA
• yaml/pyyaml#472 -- Fix for CVE-2020-14343, moves arbitrary python tags to UnsafeLoader
• yaml/pyyaml#441 -- Fix memory leak in implicit resolver setup
• yaml/pyyaml#392 -- Fix py2 copy support for timezone objects
• yaml/pyyaml#378 -- Fix compatibility with Jython

5.3.1 (2020-03-18)

• yaml/pyyaml#386 -- Prevents arbitrary code execution during python/object/new constructor

5.3 (2020-01-06)

• yaml/pyyaml#290 -- Use is instead of equality for comparing with None
• yaml/pyyaml#270 -- Fix typos and stylistic nit
• yaml/pyyaml#309 -- Fix up small typo
• yaml/pyyaml#161 -- Fix handling of slots
• yaml/pyyaml#358 -- Allow calling add_multi_constructor with None
• yaml/pyyaml#285 -- Add use of safe_load() function in README
• yaml/pyyaml#351 -- Fix reader for Unicode code points over 0xFFFF
• yaml/pyyaml#360 -- Enable certain unicode tests when maxunicode not > 0xffff
• yaml/pyyaml#359 -- Use full_load in yaml-highlight example
• yaml/pyyaml#244 -- Document that PyYAML is implemented with Cython
• yaml/pyyaml#329 -- Fix for Python 3.10
• yaml/pyyaml#310 -- Increase size of index, line, and column fields
• yaml/pyyaml#260 -- Remove some unused imports
• yaml/pyyaml#163 -- Create timezone-aware datetimes when parsed as such
• yaml/pyyaml#363 -- Add tests for timezone

5.2 (2019-12-02)

... (truncated)

Commits

• 8cdff2c 6.0 release
• a4fb55e Update Python 3.10 versions for Windows build
• e45b964 Add Python 3.10 to tox.ini
• 4808fba 6.0b1 release
• d5aba40 Omnibus CI/artifact build update
• a6d384c Various setup fixes
• 8f3f979 No longer using appveyor
• c274365 The yaml.load{,_all} functions require Loader= now
• 2f87ac4 Add a basic test file for yaml.load and yaml.dump
• 7bd92df Makefile tweaks
• Additional commits viewable in compare view

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[dependabot]

The following labels could not be found: kind/deps.