Bump requirementslib from 1.5.9 to 1.5.15 in /backend

[dependabot-preview]

Bumps requirementslib from 1.5.9 to 1.5.15.

Changelog

Sourced from requirementslib's changelog.

1.5.15 (2020-11-04)

Bug Fixes

• Fix a bug that file URLs will be incorrectly unquoted during parsing. #274

1.5.14 (2020-10-29)

Bug Fixes

• Fix the PEP 517 requires in default pyproject.toml and clean the temp files. #262
• Fix an unparse error that the dictionary keys are unhashable. #266
• Fix a bug that dist-info inside venv directory will be mistaken as the editable package's metadata. #273

1.5.13 (2020-08-12)

Bug Fixes

• Don't copy whole tree for local directory dependencies. #259

1.5.12 (2020-07-10)

Bug Fixes

• Fix a bug that assignments with type annotations are missing from the AST. #253
• Fix a bug that package_dir points to a wrong location when parsing setup.cfg. #255

1.5.11 (2020-06-01)

Bug Fixes

• Packages which use a function call in setup.py to find their own name dynamically will now successfully resolve. #251

1.5.10 (2020-06-01)

Bug Fixes

• Switch to BFS algorithm to iterate possible metadata directories. #186

Commits

• cb305ea Release 1.5.15
• 3206495 Merge pull request #275 from sarugaku/bugfix/274
• 817760a wrong format
• 853e4e8 Fix workflow file
• 1775353 update workflow
• 408752d Add tests and news
• 772475f Remove redundant URL unquoting
• 59bcff3 Merge pull request #269 from felixonmars/patch-2
• e35fd8f Merge branch 'master' into patch-2
• c258625 pre-bump
• Additional commits viewable in compare view

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[dependabot-preview]

Superseded by #67.