refactor(core): Abstract away InstanceSettings and encryptionKey into injectable services (no-changelog) (#7471)

This change ensures that things like `encryptionKey` and `instanceId`
are always available directly where they are needed, instead of passing
them around throughout the code.

packages/cli/test/integration/variables.test.ts

@@ -16,7 +16,6 @@ const licenseLike = {
 const testServer = utils.setupTestServer({ endpointGroups: ['variables'] });
 
 beforeAll(async () => {
-	await utils.initEncryptionKey();
 	utils.mockInstance(License, licenseLike);
 
 	const owner = await testDb.createOwner();