chore: add missing write permission to push built Docker images

[kou]

What's Changed

Override permission in the docker job.

Closes #37.

[raulcd]

Could this be because it's the first time? We don't seem to have write permissions on others, like:
https://github.com/apache/arrow/blob/a974df4f2f11cf404c88df083d74a71aa463cfb9/.github/workflows/cpp.yml#L147-L152

[kou]

apache/arrow uses Docker Hub not ghcr.io and Docker Hub user account is here: https://github.com/apache/arrow/blob/a974df4f2f11cf404c88df083d74a71aa463cfb9/.github/workflows/cpp.yml#L154-L155

[assignUser]

If just updating the permission doesn't work it's probably the user name.
github.actor afaik would be kou (for this PR) but the required login would be apache which you can get through github.repository_owner

[assignUser]

Alternatively we might need to ask infra to enable the package permissions for this repo? But I feel like that defaults to enabled.

[kou]

github.actor afaik would be kou (for this PR) but the required login would be apache which you can get through github.repository_owner

Hmm. Auto-generated GitHub Token may be for github.actor not github.repository.

FYI: ADBC uses github.actor and it works:

https://github.com/apache/arrow-adbc/blob/24950853d2398fd75601656fbf2bc2ddeff7d87c/.github/workflows/packaging.yml#L360-L365

https://github.com/apache/arrow-adbc/actions/runs/15668872626/job/44136690901#step:8:1

Run docker/login-action@74a5d142397b4f367a81961eba4e8cd7edddf772
  with:
    registry: ghcr.io
    username: lidavidm
    password: ***
    ecr: auto
    logout: true

[kou]

Alternatively we might need to ask infra to enable the package permissions for this repo? But I feel like that defaults to enabled.

apache/arrow-java#476 may be related but let's try with this. If we can't push, let's ask INFRA.

[assignUser]

Ah, ok! Then it's probably just the missing scope :)

[kou]

Worked: https://github.com/apache/arrow-swift/actions/runs/15693333885/job/44213242144#step:9:849

 Pushing ghcr.io/apache/arrow-swift-dev:amd64-ubuntu-noble: c8ed27d1ec99 Pushed 

[kou]

https://github.com/apache/arrow-swift/pkgs/container/arrow-swift-dev is public. It must be available from forks.