chore(release): remove writes to old downloads bucket DEVPROD-17837

[drichmdb]

This commit removes all writes to the old downloads bucket. Traffic has been cut over for quite some time now, so we should no longer need this code.

[Copilot]

Pull Request Overview

This PR removes writes to the old downloads bucket as part of a cleanup effort after traffic has been migrated to a new bucket. The changes consolidate AWS credential handling to use session tokens and eliminate redundant upload operations.

• Removes all references to the old download center bucket and its associated AWS credentials
• Consolidates to use a single set of AWS credentials with session token support
• Updates configuration files and environment variable mappings to reflect the new credential structure

Reviewed Changes

Copilot reviewed 11 out of 11 changed files in this pull request and generated 1 comment.

Show a summary per file

File	Description
packages/build/test/helpers.ts	Adds session token to test configuration
packages/build/src/run-draft.ts	Removes old bucket upload function and adds session token parameter
packages/build/src/publish-mongosh.ts	Updates constructor to use session token instead of old bucket credentials
packages/build/src/index.ts	Consolidates AWS credential validation to single set with session token
packages/build/src/download-center/config.ts	Removes old bucket operations and updates to use session token
packages/build/src/download-center/artifacts.ts	Removes old upload function and updates remaining function to use session token
packages/build/src/config/redact-config.spec.ts	Adds session token to redacted config list
packages/build/src/config/config.ts	Updates Config interface to remove old credentials and add session token
config/build.conf.js	Updates environment variable mappings for new credential structure
.github/workflows/update-cta.yml	Updates workflow to use new environment variable names
.evergreen.yml	Updates CI configuration to use new environment variable names

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[Copilot]

Using Promise.all with a single operation is unnecessary. The array wrapper can be removed since there's only one upload operation remaining.

[lerouxb]

yeah you can just await dlcenterArtifacts.uploadAsset( the same way the code await dlcenterArtifactsNew.uploadAsset( did that was removed. And remove the Promise.all.

[drichmdb]

I realized this was a mistake to remove thanks to this comment, we do need the Promise.all because we need to keep the configuration file upload!