Update fastobo requirement from ~=0.9.0 to ~=0.9.1

[dependabot-preview[bot]]

Updates the requirements on fastobo to permit the latest version.

Release notes

Sourced from fastobo's releases.

0.9.1

Added

• Wheel compilation for older OSX versions.
• Automatic download on UNIX platforms for platforms without rustc installing from source distribution.

Changelog

Sourced from fastobo's changelog.

v0.9.1 - 2020-08-15

Added

• Wheel compilation for older OSX versions.
• Automatic download on UNIX platforms for platforms without rustc installing from source distribution.

v0.9.0 - 2020-07-29

Changed

• Bumped fastobo to v0.10.0 to support comment lines.
• Bumped pyo3 to v0.11.1.

Fixed

• fastobo.id.parse will chain the eventual SyntaxError to the ValueError raised if the identifier is invalid.
• Python threads are now released during intensive operations running only on the Rust side.

v0.8.2 - 2020-06-16

Fixed

• OboDoc not implementing list methods (.append, etc.).

v0.8.1 - 2020-06-14

Changed

• Bumped fastobo to v0.9.0.
• Bumped fastobo-graphs to v0.3.0.

Added

• fastobo.id.is_valid function to check whether or not a string is a valid OBO identifier.

v0.8.0 - 2020-06-12

Changed

• Bumped fastobo to v0.8.4.
• Bumped pyo3 to v0.10.1.
• Removed occurences of unsafe code for Python type management.
• Reduced number of GIL acquisition where possible.
• Changed implementation of file wrappers to use PyAny where applicable.

Added

• Configuratble support for multithreading in fastobo.iter, fastobo.load and fastobo.loads using the threads keyword argument.

v0.7.2 - 2020-02-12

Changed

• Bumped fastobo to v0.8.3 to fix Display implementation of fastobo::ast::IsoDateTime.

Commits

• 16b5935 Release v0.9.1
• d40b121 Fix setup.py syntax to work with Python 3.5
• c6cc541 Modify setup.py to download the Rust compiler if it is not installed locally
• 6684664 Attempt building fastobo on older OSX images in Travis-CI
• caf5180 Bump required fastobo version in docs [ci skip]
• See full diff in compare view

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[codecov[bot]]

Codecov Report

Merging #145 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #145   +/-   ##
=======================================
  Coverage   42.37%   42.37%           
=======================================
  Files          25       25           
  Lines        3622     3622           
=======================================
  Hits         1535     1535           
  Misses       2087     2087           

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[dependabot-preview[bot]]

Superseded by #154.