Bumps [actions/cache](https://github.com/actions/cache) from 2.1.5 to 2.1.6.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.5...v2.1.6

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* Tests: replace unsquare with a shrinkable newtype

* Tests: do not depend on quickcheck-unicode

* Refactor most of remaining forAll

* Refactor t_utf8_err to report more information about counterexamples

Xia Li-yao authored May 01, 2021 and Bodigrim committed May 22, 2021

At the beginning of a new chunk we may be trying to complete a UTF-8
sequence started in the previous chunk (contained in the `undecode0`
buffer). If it turns out to be invalid, we must apply the `onErr`
handler to every character in that buffer.

When we reach the end of the chunk, we must also be more careful
about when to keep the previous buffer: a UTF-8 sequence (up to 4 bytes)
can span more than two chunks, when those chunks are very short
(of length 0, 1, or 2).

* Support only GHC >= 8.0

* Fix a build warning

* Make integer-simple flag redundant

Bumps [actions/checkout](https://github.com/actions/checkout) from 2 to 2.3.4.
- [Release notes](https://github.com/actions/checkout/releases)
- [Changelog](https://github.com/actions/checkout/blob/main/CHANGELOG.md)
- [Commits](https://github.com/actions/checkout/compare/v2...v2.3.4

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Bumps [haskell/actions](https://github.com/haskell/actions) from 1 to 1.2.1.
- [Release notes](https://github.com/haskell/actions/releases)
- [Commits](https://github.com/haskell/actions/compare/v1...v1.2.1

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dependabot[bot] authored Apr 26, 2021 and Bodigrim committed Apr 26, 2021

Bumps [vmactions/freebsd-vm](https://github.com/vmactions/freebsd-vm) from v0.1.3 to v0.1.4.
- [Release notes](https://github.com/vmactions/freebsd-vm/releases)
- [Commits](https://github.com/vmactions/freebsd-vm/compare/v0.1.3...e75f5171b3694d92b82ee5eb9a859ce31a0a548e

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Dmitry Ivanov authored Apr 20, 2021 and Bodigrim committed Apr 25, 2021

Co-authored-by: Kubo Kováč <733205+kuk0@users.noreply.github.com>

dependabot[bot] authored Apr 13, 2021 and Bodigrim committed Apr 13, 2021

Bumps [actions/cache](https://github.com/actions/cache) from v2.1.4 to v2.1.5.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/compare/v2.1.4...1a9e2138d905efd099035b49d8b7a3888c653ca8

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Updates the requirements on [actions/cache](https://github.com/actions/cache) to permit the latest version.
- [Release notes](https://github.com/actions/cache/releases)
- [Commits](https://github.com/actions/cache/commits/26968a09c0ea4f3e233fdddbafd1166051a095f6

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Ben Gamari authored Apr 01, 2021 and Bodigrim committed Apr 11, 2021

It turns out that all uses of withForeignPtr can safely use
unsafeWithForeignPtr.