For #32571.
Original PR from the community:
https://github.com/fleetdm/fleet/pull/32573.
Changes on this PR:
- Only setting the checksum algorithm when using GCS as backend (to not
break other S3 backends).
- Changes for carves, bootstrap packages, and software icons which also
use S3.
## Testing
- [X] QA'd all new/changed functionality manually
```sh
FLEET_S3_SOFTWARE_INSTALLERS_BUCKET=some-software-installers-bucket \
FLEET_S3_SOFTWARE_INSTALLERS_ACCESS_KEY_ID=... \
FLEET_S3_SOFTWARE_INSTALLERS_SECRET_ACCESS_KEY=... \
FLEET_S3_SOFTWARE_INSTALLERS_ENDPOINT_URL=https://storage.googleapis.com \
FLEET_S3_SOFTWARE_INSTALLERS_REGION=us \
FLEET_S3_SOFTWARE_INSTALLERS_FORCE_S3_PATH_STYLE=true \
FLEET_S3_CARVES_BUCKET=some-carves-bucket \
FLEET_S3_CARVES_ACCESS_KEY_ID=... \
FLEET_S3_CARVES_SECRET_ACCESS_KEY=... \
FLEET_S3_CARVES_ENDPOINT_URL=https://storage.googleapis.com \
FLEET_S3_CARVES_REGION=us \
FLEET_S3_CARVES_FORCE_S3_PATH_STYLE=true \
./build/fleet serve --dev --dev_license --logging_debug 2>&1 | tee ~/fleet.txt
```
Lucas Manuel Rodriguez
9297acdf72