Add experimental multi-provider BYOK registry config across all six SDKs #1222

Job	Run time
Rust SDK Bundled CLI Build (windows-latest)	2m 24s
Rust SDK Tests (ubuntu-latest)	20m 16s
Rust SDK Bundled CLI Build (ubuntu-latest)	50s
Rust SDK Tests (macos-latest)	20m 16s
Rust SDK Tests (windows-latest)	24m 56s
Rust SDK Bundled CLI Build (macos-latest)	1m 26s
Rust SDK Tests (windows-latest)	26m 20s
Rust SDK Tests (ubuntu-latest)	20m 16s
Rust SDK Bundled CLI Build (ubuntu-latest)	50s
Rust SDK Tests (macos-latest)	20m 16s
Rust SDK Bundled CLI Build (macos-latest)	1m 26s
Rust SDK Bundled CLI Build (windows-latest)	2m 24s
	2h 21m 40s

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