Copy latest report within a bucket instead of host for gcs

[andrcuns]

Do not perform unnecessary copy from source when creating a latest report copy.

Allure report

allure-report-publisher generated test report!

rspec: ❌ test report for 266ebea3

+----------------------------------------------------------------+
|                       behaviors summary                        |
+-----------+--------+--------+---------+-------+-------+--------+
|           | passed | failed | skipped | flaky | total | result |
+-----------+--------+--------+---------+-------+-------+--------+
| providers | 48     | 0      | 0       | 0     | 48    | ✅     |
| uploaders | 51     | 6      | 0       | 0     | 57    | ❌     |
| helpers   | 138    | 6      | 0       | 0     | 144   | ❌     |
| commands  | 63     | 0      | 0       | 0     | 63    | ✅     |
| cli       | 3      | 0      | 0       | 0     | 3     | ✅     |
| generator | 9      | 0      | 0       | 0     | 9     | ✅     |
+-----------+--------+--------+---------+-------+-------+--------+
| Total     | 312    | 12     | 0       | 0     | 324   | ❌     |
+-----------+--------+--------+---------+-------+-------+--------+

[codeclimate]

Code Climate has analyzed commit e167497 and detected 0 issues on this pull request.

The test coverage on the diff in this pull request is 100.0% (50% is the threshold).

This pull request will bring the total coverage in the repository to 98.3% (0.0% change).

View more on Code Climate.