Merge pull request #16 from upwork/v2.3.0

v2.3.0

Merge pull request #15 from upwork/issue-13-changed-base_url

chore: update jar

Merge pull request #12 from upwork/v2.2.0

feat(grant): add support of Client Credentials Grant

Merge pull request #9 from upwork/v2.1.3

v2.1.3

Merge pull request #3 from upwork/v2.1.2

v2.1.2

Merge pull request #2 from upwork/v2.1.1

v2.1.1

Merge pull request #1 from upwork/v2.1.0

fix v2.1.0

Draft a new version

fix name in pom.xml