bump loggregatorlib

74a795a Remove pending tests
48ca3e3 use go get instead of install
39c89e5 Fix incorrect etcd url
38c384c Check for etcd before running store tests
8d065ac Move loggregator/store to loggregatorlib

automatic promotion by GoCD workflow Loggregatorlib/82 > UnitTests/1 > UnitTests
Whitespace change.

[#76159336]

Signed-off-by: Joseph Rodriguez <jrodriguez@pivotallabs.com>
go fmt

Signed-off-by: Joseph Rodriguez <jrodriguez@pivotallabs.com>