Remove everything from bin and pkg when running unit tests in docker.
Remove everything from bin and pkg when running unit tests in docker.

[#91745146]

CloudCredo/cf-mysql-release,CloudCredo/cf-mysql-release,cloudfoundry/cf-mysql-release,cloudfoundry/cf-mysql-release,krishna-mk/cf-mysql-release,CloudCredo/cf-mysql-release,krishna-mk/cf-mysql-release,kbastani/cf-mysql-release,cloudfoundry/cf-mysql-release,kbastani/cf-mysql-release,krishna-mk/cf-mysql-release,cloudfoundry/cf-mysql-release,kbastani/cf-mysql-release