Update hypothesis to 3.30.4

[pyup-bot]

There's a new version of hypothesis available.
You are currently using 3.30.1. I have updated it to 3.30.4

These links might come in handy: PyPI | Changelog | Repo

Changelog

3.30.4

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This release makes several changes:

1. It significantly improves Hypothesis's ability to use coverage information
   to find interesting examples.
2. It reduces the default max_examples setting from 200 to 100. This takes
   advantage of the improved algorithm meaning fewer examples are typically
   needed to get the same testing and is sufficiently better at covering
   interesting behaviour, and offsets some of the performance problems of
   running under coverage.
3. Hypothesis will always try to start its testing with an example that is near
   minimized.

The new algorithm for 1 also makes some changes to Hypothesis's low level data
generation which apply even with coverage turned off. They generally reduce the
total amount of data generated, which should improve test performance somewhat.
Between this and 3 you should see a noticeable reduction in test runtime (how
much so depends on your tests and how much example size affects their
performance. On our benchmarks, where data generation dominates, we saw up to
a factor of two performance improvement, but it's unlikely to be that large.

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3.30.3

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This release fixes some formatting and small typos/grammar issues in the
documentation, specifically the page docs/details.rst, and some inline
docs linked from there.

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3.30.2

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This release changes Hypothesis's caching approach for functions in
hypothesis.strategies. Previously it would have cached extremely
aggressively and cache entries would never be evicted. Now it adopts a
least-frequently used, least recently used key invalidation policy, and is
somewhat more conservative about which strategies it caches.

This should cause some workloads (anything that creates strategies based on
dynamic values, e.g. using flatmap or composite) to see a significantly lower
memory usage.

---

Got merge conflicts? Close this PR and delete the branch. I'll create a new PR for you.

Happy merging! 🤖

[coveralls]

Coverage remained the same at 100.0% when pulling 0b54354 on pyup-update-hypothesis-3.30.1-to-3.30.4 into 5c3ffca on master.