Switch from GDRIVE to GCS

[davidoesch]

**Is your feature request related to a problem? **
A recommendation from GEE Engineer; to use GCS rather than GDRIVE

Describe the solution you'd like
function: replace the export to TIF to GCS and the satromo_publish_process . ensure that VSICURL works on it

Describe alternatives you've considered
So far GDRIVE worked- keep it as fallback

[davidoesch]

Neede for reprocess, since we need more dataspace than GDRIVE

[davidoesch]

fixed with 9738716 but we don't use it yet in production

[davidoesch]

reopened, since we have to ENABLE it in production : set credentials accordingly ( see isssue generate in https://github.com/swisstopo/topo-satromo/actions/runs/11715976429/job/32633284773)

[davidoesch]

or an intermeridate fix: switch to https://github.com/iterative/PyDrive2 since pydrive is depreciated