Save plugin preferences with expected static key #1246

Job	Run time
Install	22s
Build Tests	1m 7s
Lint	41s
Default Tests	1m 33s
Floating Deps Test	2m 3s
[email protected]	1m 22s
Publish Docs to Cloudflare Pages	1m 37s
[email protected]	1m 36s
[email protected]	1m 41s
Typecheck Docs	43s
ember-lts-3.28	1m 33s
ember-4.0	1m 21s
ember-lts-4.4	1m 37s
ember-lts-4.8	1m 42s
ember-lts-4.12	1m 53s
ember-release	1m 23s
ember-beta	2m 0s
ember-canary	1m 39s
'ember-release + embroider-safe'	1m 27s
'ember-release + embroider-optimized'	1m 42s
'ember-lts-3.28 + embroider-optimized'	1m 13s
'ember-lts-4.4 + embroider-optimized'	5m 13s
'ember-lts-4.8 + embroider-optimized'	5m 13s
Post Preview URL as comment to PR	0s
Release	0s
	40m 41s

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