Add --force to docker commands (#4820)

## Description of the changes
- `docker prune` commands will, by default, prompt the caller whether if
they want to proceed, while defaulting to `N`, which resulted in a no-op
in this [recent CI
run](https://github.com/jaegertracing/jaeger/actions/runs/6442084773/job/17492537692#step:19:735).
- Adding a `--force` flag defaults to `y` without a prompt.

## How was this change tested?
- Tested locally in terminal.

## Checklist
- [x] I have read
https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md
- [x] I have signed all commits

Signed-off-by: albertteoh <see.kwang.teoh@gmail.com>

scripts/build-upload-a-docker-image.sh

@@ -71,6 +71,6 @@ docker buildx build --output "${PUSHTAG}" \
 echo "Finished building${upload_flag} ${component_name} =============="
 
 df -h /
-docker buildx prune --all --verbose
-docker system prune
+docker buildx prune --all --verbose --force
+docker system prune --force
 df -h /