Add changelog entry for PR #3307

[shreyas-goenka]

Summary

This PR adds a changelog entry for PR #3307 which implemented top level run_as support for DLT pipelines in Databricks Asset Bundles (DABs).

Changes

• Added entry to NEXT_CHANGELOG.md under the Bundles section documenting the new top level run_as support for DLT pipelines

Context

PR #3307 enabled DABs to support the run_as field at the top level for DLT pipelines. Previously, DABs would error if pipelines were used with the run_as field set. Now the CLI transparently reads the run_as value and applies it to all pipelines in the bundle.

🤖 Generated with Claude Code

[pietern]

Claude is quite verbose in the PR summary for a changelog entry.

[eng-dev-ecosystem-bot]

Run: 17429240420

	Env	✅​pass	🔄​flaky	🙈​skip
✅​	aws linux	308		512
✅​	aws windows	309		511
✅​	aws-ucws linux	420		410
✅​	aws-ucws windows	421		409
✅​	azure linux	308		511
🔄​	azure windows	307	2	510
✅​	azure-ucws linux	420		409
✅​	azure-ucws windows	421		408
🔄​	gcp linux	303	4	513
🔄​	gcp windows	306	2	512

8 failing tests:

Test Name	azure windows	gcp linux	gcp windows
TestAccept/bundle/deploy/dashboard/simple_syncroot	✅​pass	✅​pass	🔄​flaky
TestAccept/bundle/deployment/bind/model-serving-endpoint	✅​pass	✅​pass	🔄​flaky
TestAccept/bundle/resources/pipelines/update	✅​pass	🔄​flaky	✅​pass
TestAccept/bundle/resources/pipelines/update/DATABRICKS_CLI_DEPLOYMENT=terraform	✅​pass	🔄​flaky	✅​pass
TestAccept/bundle/templates/default-python/combinations/classic	✅​pass	🔄​flaky	✅​pass
TestAccept/bundle/templates/default-python/combinations/classic/DATABRICKS_CLI_DEPLOYMENT=terraform/DLT=yes/NBOOK=yes/PY=yes	✅​pass	🔄​flaky	✅​pass
TestFilerWorkspaceNotebook	🔄​flaky	✅​pass	✅​pass
TestFilerWorkspaceNotebook/scalaJupyterNb.ipynb	🔄​flaky	✅​pass	✅​pass

[shreyas-goenka]

Claude is quite verbose in the PR summary for a changelog entry.

I asked it to write a PR description, that's likely why.

dismissing to unblock merge.