Improved CI at the level of meta-ohos repository

- Use re-usable .workspace job from pipelines repository
- Less repetition with more targets supported
- Higher uniformity with the pipeline at the manifest repository.

Closes: https://git.ostc-eu.org/OSTC/OHOS/meta-ohos/-/issues/22


Signed-off-by: Zygmunt Krynicki <zygmunt.krynicki@huawei.com>