chore(deps): bump futures-core from 0.3.19 to 0.3.21

[dependabot]

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Bumps futures-core from 0.3.19 to 0.3.21.

Release notes

Sourced from futures-core's releases.

0.3.21

• Fix potential data race in FlattenUnordered that introduced in 0.3.20 (#2566)

0.3.20

• Fix stacked borrows violations when -Zmiri-tag-raw-pointers is enabled. This raises MSRV of futures-task to 1.45. (#2548, #2550)
• Change FuturesUnordered to respect yielding from future (#2551)
• Add StreamExt::{flatten_unordered, flat_map_unordered} (#2083)

Changelog

Sourced from futures-core's changelog.

0.3.21 - 2022-02-06

• Fix potential data race in FlattenUnordered that introduced in 0.3.20 (#2566)

0.3.20 - 2022-02-06

NOTE: This release has been yanked due to a bug fixed in 0.3.21.

• Fix stacked borrows violations when -Zmiri-tag-raw-pointers is enabled. This raises MSRV of futures-task to 1.45. (#2548, #2550)
• Change FuturesUnordered to respect yielding from future (#2551)
• Add StreamExt::{flatten_unordered, flat_map_unordered} (#2083)

Commits

• fc1e325 Release 0.3.21
• 20279eb FlattenUnordered: improve wakers behavior (#2566)
• 75dca5a Fix MSRV in futures-task readme
• 55281c8 Release 0.3.20
• 591b982 Redefine executor and compat modules in futures crate (#2564)
• 94b508b Basic StreamExt::{flatten_unordered, flat_map_unordered} impls (#2083)
• dca16fa Do not auto-create PR on fork
• a9795a9 Automatically creates PR when no_atomic_cas.rs needs to be updated
• 4841888 Update comments in build scripts
• 85706b6 Clean up ci/no_atomic_cas.sh
• Additional commits viewable in compare view

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[codecov-commenter]

Codecov Report

Merging #689 (573a496) into main (af45666) will decrease coverage by 0.00%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main     #689      +/-   ##
==========================================
- Coverage   69.65%   69.64%   -0.01%     
==========================================
  Files          84       84              
  Lines       10993    10993              
==========================================
- Hits         7657     7656       -1     
- Misses       3336     3337       +1