chore: Fix release job by doing all builds in step 1 and only download and publish in subsequent steps

[EspenAlbert]

Proposed changes

Example artifact:

dist
├── changelog.md
├── dotnet
│   ├── MongoDB.AWSCDKResourcesMongoDBAtlas.3.12.0.nupkg
│   └── MongoDB.AWSCDKResourcesMongoDBAtlas.3.12.0.snupkg
├── go
│   └── awscdkresourcesmongodbatlas # full repo
├── java
│   └── org # /mongodb/awscdk-resources-mongodbatlas/3.12.0/awscdk-resources-mongodbatlas-3.12.0.jar
├── js
│   └── [email protected]
├── python
│   ├── awscdk_resources_mongodbatlas-3.12.0-py3-none-any.whl
│   └── awscdk_resources_mongodbatlas-3.12.0.tar.gz
├── releasetag.txt
└── version.txt

Link to any related issue(s): https://jira.mongodb.org/browse/CLOUDP-316980

Type of change:

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as
  expected)
• This change requires a documentation update

Required Checklist:

• I have signed the MongoDB CLA
• I have added tests that prove my fix is effective or that my feature works
• I have added any necessary documentation (if appropriate)
• I have run make fmt and formatted my code
• I have tested the CDK constructor in a CFN stack. See TESTING.md
• If changes include removal or addition of 3rd party GitHub actions, I updated our internal document. Reach out to the APIx Integration slack channel to get access to the internal document.

Further comments

[lantoli]

as we do some move files/directories, have you been able to check that this change works and releases are done correctly?

[EspenAlbert]

Yes, see here.

[lantoli]

nice!

[lantoli]

LGMT, thanks for following this up

[oarbusi]

LGTM

[EspenAlbert]

*Bypassed rule of changes to l1, as the same job is failing in main and is more cleanly done in a separate PR.
Failing main: https://github.com/mongodb/awscdk-resources-mongodbatlas/actions/runs/15158047661