Update jms-testkit to 0.2.1

[scala-steward]

Updates io.github.sullis:jms-testkit from 0.2.0 to 0.2.1.

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 @scala-steward in the comments below.

Have a nice day!

[coveralls]

Pull Request Test Coverage Report for Build 63

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 100.0%

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Totals
Change from base Build 58:	0.0%
Covered Lines:	23
Relevant Lines:	23

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💛 - Coveralls