Update predicates requirement from 1 to 2

[dependabot-preview]

Updates the requirements on predicates to permit the latest version.

Changelog

Sourced from predicates's changelog.

[2.0.0] - 2021-07-03

Breaking Changes

• predicates::str::diff was removed
• predicates::str::similar was renamed to diff
• The difference feature flag was renamed to diff
• diff().split and diff().distance were removed

Fixes

• Shrink the output of Diffs because its redundant
• Moved off of an unmaintained Diff library

[1.0.8] - 2021-04-28

[1.0.7] - 2021-01-29

[1.0.6] - 2020-12-28

Fixed

• NamePredicate now adds itself to the Case returned by find_case.

[1.0.5] - 2020-07-18

Fixed

• Update float-cmp dependency

[1.0.4] - 2020-03-04

Fixed

• Upgrade normalize-line-endings

[1.0.3] - 2020-02-25

[1.0.2] - 2019-11-18

Fixed

• BooleanPredicate now implements Predicate<T> where T: ?Sized (#84)

[1.0.1] - 2019-04-22

Changed

• BooleanPredicate is no longer generic, and is always Send and Sync.

[1.0.0] - 2018-10-06

[0.9.1] - 2018-10-05

Added

• Created a predicate selection guide.

... (truncated)

Commits

• 1371e81 chore(predicates): Release 2.0.0
• c1759c7 chore(ci): Missed committed workflow
• a18f82a chore(ci): Migrate completely to GH Actions
• a002ea6 chore(gh): Fix toolchain versions
• 8daa1f8 chore(gh): Spell check
• 6be144f chore(gh): Automate Github
• fd6a7d9 Merge pull request #107 from epage/diff
• 8fb2d1e fix(diff): Remove duplicated output
• 23c1360 Merge pull request #101 from marieell/patch-1
• a1f24d5 Fix typo in docs
• Additional commits viewable in compare view

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