Update guava to 31.0.1-jre

[scala-steward]

Updates com.google.guava:guava from 30.1.1-jre to 31.0.1-jre.

I'll automatically update this PR to resolve conflicts as long as you don't change it yourself.

If you'd like to skip this version, you can just close this PR. If you have any feedback, just mention me in the comments below.

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Ignore future updates

Add this to your .scala-steward.conf file to ignore future updates of this dependency:

updates.ignore = [ { groupId = "com.google.guava", artifactId = "guava" } ]

labels: test-library-update, semver-major

[scala-steward]

Superseded by #248.