scm: git: add latest changesets branch test in unit model test (#5357).
scm: git: add latest changesets tag test in unit model test (#5357).
scm: git: add latest changesets limit test in unit model test (#5357).
scm: git: remove Setting.commit_logs_encoding from unit model test.
scm: git: add latest changesets test in unit model test (#5357).
scm: git: prepare path encoding test in unit model test (#5251).
scm: git: add tests for path encoding entries() in unit adapter test (#5251).
scm: git: add core.quotepath = false to run git command (#5251).
scm: git: add tests for branch entries() in unit adapter test.
scm: git: add tests for tag entries() in unit adapter test.
