Bump rayon from 1.1.0 to 1.2.0

[dependabot-preview[bot]]

Bumps rayon from 1.1.0 to 1.2.0.

Changelog

*Sourced from [rayon's changelog](https://github.com/rayon-rs/rayon/blob/master/RELEASES.md).* > # Release rayon 1.2.0 / rayon-core 1.6.0 (2019-08-30) > > - The new `ParallelIterator::copied()` converts an iterator of references into > copied values, like `Iterator::copied()`. > - `ParallelExtend` is now implemented for the unit `()`. > - Internal updates were made to improve test determinism, reduce closure type > sizes, reduce task allocations, and update dependencies. > - The minimum supported `rustc` is now 1.28. > > ## Contributors > > Thanks to all of the contributors for this release! > > - [@​Aaron1011](https://github.com/Aaron1011) > - [@​cuviper](https://github.com/cuviper) > - [@​ralfbiedert](https://github.com/ralfbiedert)

Commits

- [`60cdb43`](https://github.com/rayon-rs/rayon/commit/60cdb431731d471add01281f63ccf8f8bc0451f3) Merge [#686](https://github-redirect.dependabot.com/rayon-rs/rayon/issues/686) - [`efeeace`](https://github.com/rayon-rs/rayon/commit/efeeace277a08b1cc5c2cf076ff2e7e948030e6f) Release rayon 1.2.0 / rayon-core 1.6.0 - [`d993d7a`](https://github.com/rayon-rs/rayon/commit/d993d7a666722578a3e793e0fb34e201dd759f01) Merge [#683](https://github-redirect.dependabot.com/rayon-rs/rayon/issues/683) - [`2720d8d`](https://github.com/rayon-rs/rayon/commit/2720d8d55bc2f9df9ee34ccd5e75c7b65fb0754c) Merge [#682](https://github-redirect.dependabot.com/rayon-rs/rayon/issues/682) - [`c6a294b`](https://github.com/rayon-rs/rayon/commit/c6a294b62f299c86f25c2a421169c1ee9938cd4d) impl ParallelExtend\<()> for () - [`9bfb3c6`](https://github.com/rayon-rs/rayon/commit/9bfb3c6d55c7e05f23f7d9979808f1645539be78) clippy::inconsistent_digit_grouping - [`3cd762e`](https://github.com/rayon-rs/rayon/commit/3cd762e22589e17e73417f01f32ba01736be1929) clippy::toplevel_ref_arg - [`b216c3e`](https://github.com/rayon-rs/rayon/commit/b216c3e0eba85b9e67897eee6b3bffc6c4dba467) Update bare traits to `dyn Trait` - [`58b0275`](https://github.com/rayon-rs/rayon/commit/58b0275a14987dea37c9d06cc1b3864de516a1fd) Once:new() is const-stable since Rust 1.24 - [`83b67e2`](https://github.com/rayon-rs/rayon/commit/83b67e27f254c5bde039fdc0ea0840f309ce5f73) Merge [#673](https://github-redirect.dependabot.com/rayon-rs/rayon/issues/673) - Additional commits viewable in [compare view](https://github.com/rayon-rs/rayon/compare/rayon-core-v1.1.0...v1.2.0)

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[dependabot-preview[bot]]

Looks like rayon is up-to-date now, so this is no longer needed.