RUM-6584: Make the publish of podspecs rely on "Build Artifacts"

[simaoseica-dd]

What and why?

This PR fixes the pipelines to publish the podspecs taking into account the resources created on the Build Artifacts job.

How?

In a dry run the setup is now running successfully.

Review checklist

• Feature or bugfix MUST have appropriate tests (unit, integration)
• Make sure each commit and the PR mention the Issue number or JIRA reference
• Add CHANGELOG entry for user facing changes
• Add Objective-C interface for public APIs (see our guidelines [internal]) and run make api-surface)

[datadog-datadog-prod-us1]

Datadog Report

Branch report: simaoseica/RUM-6584/propagate-artifacts-to-dependent-jobs
Commit report: c5205ce
Test service: dd-sdk-ios

✅ 0 Failed, 3583 Passed, 0 Skipped, 2m 40.85s Total Time
🔻 Test Sessions change in coverage: 4 decreased, 1 increased (+0.02%), 9 no change

🔻 Code Coverage Decreases vs Default Branch (4)

• test DatadogCoreTests tvOS 78.57% (-0.18%) - Details
• test DatadogCoreTests iOS 71.85% (-0.05%) - Details
• test DatadogRUMTests tvOS 81.2% (-0.04%) - Details
• test DatadogCrashReportingTests iOS 26.63% (-0.02%) - Details

[ncreated]

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