fix: change annealingDurationRange to a list of floats.

[krneta]

Issue #, if available:

Description of changes:
It's possible for device configurations to give us a time as a fraction of a second, therefore annealingDurationRange should be a list of floats, rather than ints.

Testing done:
tox

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[codecov]

Codecov Report

Merging #100 (a3e8ffa) into main (f656476) will not change coverage.
The diff coverage is 100.00%.

@@            Coverage Diff            @@
##              main      #100   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files           50        50           
  Lines          804       804           
  Branches       179       179           
=========================================
  Hits           804       804           

Impacted Files	Coverage Δ
...evice_schema/dwave/dwave_device_capabilities_v1.py	100.00% <ø> (ø)
...ma/dwave/dwave_2000Q_device_level_parameters_v1.py	100.00% <100.00%> (ø)
...wave/dwave_advantage_device_level_parameters_v1.py	100.00% <100.00%> (ø)
...evice_schema/dwave/dwave_provider_properties_v1.py	100.00% <100.00%> (ø)

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