Update mockito.version to v3.6.0

[renovate]

This PR contains the following updates:

Package	Update	Change
org.mockito:mockito-core	minor	3.5.15 -> 3.6.0
org.mockito:mockito-junit-jupiter	minor	3.5.15 -> 3.6.0

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Release Notes

mockito/mockito

v3.6.0

Compare Source

^{Release notes were automatically generated by Shipkit}

3.6.0

• 2020-10-27 - 7 commits by Szczepan Faber (4), shipkit-org (2), Tim van der Lippe (1) - published to
• Retry the release (#​2078)
• Retry 3.6.0 release (#​2077)

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[coveralls]

Coverage remained the same at 86.531% when pulling 15b8cce on renovate/mockito.version into 3801a24 on main.