Bump tools pin to v0.8.39 in release workflows

[ibrahim halatci (ihalatci)]

What

Bumps the citusdata/tools pin from v0.8.36 to v0.8.39 in the two
release workflows that were left behind:

Workflow	Before	After
build-package.yml	v0.8.36	v0.8.39
update_package_properties.yml	v0.8.36	v0.8.39
build-citus-community-nightlies.yml	v0.8.39	unchanged

Diff is exactly +2/-2 (one line per file). All three all-citus
workflows now agree on v0.8.39.

Why

v0.8.36 carries a bug in citus_package.py::get_postgres_versions() —
the nightly exclusion filter iterated release_versions instead of
nightly_versions, so the nightly list was rebuilt from the
already-release-filtered list:

if exclude_dict_nightly and platform_key_nightly in exclude_dict_nightly:
    nightly_versions = [
        v
        for v in release_versions      # <-- should be nightly_versions
        if v not in exclude_dict_nightly[platform_key_nightly]
    ]

Fixed in v0.8.39 (tools #423).

This was dormant while pg_exclude.yml had nightly: {} — an empty dict
is falsy, so the block never executed. It became reachable on this branch
once pg_exclude.yml gained a non-empty nightly: section:

exclude:
  nightly:
    all: [19]

all-citus is the only branch carrying a pg_exclude.yml, so it is the
only branch where this bug is reachable. develop, debian-hll and
debian-topn have no exclusion file and are intentionally untouched here.

Nothing is broken today, because the workflow that actually consumes
nightly versions (build-citus-community-nightlies.yml) was already
pinned to v0.8.39. This closes the gap so correctness no longer depends
on which workflow happens to run.

Upgrade risk

v0.8.36...v0.8.39 is 7 commits. Restricted to the scripts these two
workflows invoke, every change is additive:

• citus_package.py — adds the ubuntu,resolute platform mapping, fixes
  the nightly filter above, and includes build stdout+stderr in the
  failure exception instead of stderr alone
• upload_to_package_cloud.py — adds the ubuntu/resolute distro id
• common_tool_methods.py — adds resolute to the ubuntu release list

update_package_properties.py is unchanged between the two tags.

The Docker-template changes in that range (including the removed
postgres-14 / postgres-15 templates) are driven by update_docker.py
and publish_docker.py, neither of which is invoked by these workflows.

Validation

• Both files re-parsed with yaml.safe_load; job keys unchanged
  (build_package, trigger_package_tests, update_package_properties)
• Committed blobs verified LF-only, and the existing double space after
  --depth=1 is preserved byte-for-byte
• git diff --stat confirms 2 files changed, 2 insertions, 2 deletions

Conflicts

No overlap with #1220, which edits the arm64 debsigner build context at
line 98 of the same file. This PR touches line 64. The two merge cleanly
in either order.