[core-api][experimental] create_external_assets_from_specs

[OwenKephart]

Summary & Motivation

decision: experimental -> deprecated
reason: this was actually marked as both experimental and deprecated, which doesn't make sense
docs exist: n/a

How I Tested These Changes

Changelog

Insert changelog entry or delete this section.

[OwenKephart]

Warning

This pull request is not mergeable via GitHub because a downstack PR is open. Once all requirements are satisfied, merge this PR as a stack on Graphite.
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• [core-api][deprecated] Confirm all simple deprecations #26712
• [core-api][experimental] include_sources -> include_external_assets #26710
• [core-api][experimental] repository_def in RunStatusSensorDefinition #26709
• [core-api][experimental] allow_nonexistent_upstream_partitions #26708
• [core-api][experimental] AutomationCondition.any_downstream_conditions #26707
• [core-api][experimental] observable_source_asset, multi_observable_source_asset #26706
• [core-api][experimental] Definitions.get_all_asset_specs, Definitions.with_reconstruction_metadata #26705
• [core-api][experimental] Definitions.merge #26704
• [core-api][experimental] create_repository_using_definitions_args #26703
• [core-api][experimental] freshness_policy param #26702
• [core-api][experimental] ObserveResult #26701
• [core-api][experimental] freshness checks #26700
• [core-api][experimental] multi_asset_sensor #26699
• [core-api][experimental] DataVersion assorted APIs #26698
• [core-api][experimental] AssetSelection.tag #26697
• [core-api][experimental] AutomationConditionSensorDefinition #26696
• [core-api][experimental] execution type #26695
• [core-api][experimental] BackfillPolicy #26694
• [core-api][experimental] source code metadata #26693
• [core-api][experimental] Table metadata #26692
• [core-api][experimental][PLACEHOLDER] create beta decorator #26691
• [core-api][experimental] build_reconstructable_job #26690
• [core-api][experimental] AssetOut tags #26689
• [core-api][experimental] direct resource passing #26688
• [core-api][experimental] exclude_subruns #26687
• [core-api][experimental] multi partition mappings #26686
• [core-api][experimental] AMP #26685
• [core-api][experimental] get_asset_provenance #26684
• [core-api][experimental] InputDefinition #26683
• [core-api][experimental] create_external_assets_from_specs #26682 👈 (View in Graphite)
• [core-api][experimental] AssetsDefinition specs #26681
• [core-api][experimental] owners #26680
• [core-api][experimental] custom_path_fs_io_manager #26679
• [core-api][experimental] report_runless_asset_event #26678
• master

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