Update license.version to v4.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
com.mycila:license-maven-plugin-git	4.2 -> 4.3
com.mycila:license-maven-plugin	4.2 -> 4.3

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[coveralls]

coverage: 88.312%. remained the same when pulling c618bdb on renovate/license.version into 0e26f73 on master.