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/nodes-base/nodes/Google/Gmail/v2/GmailV2.node.ts

@@ -206,7 +206,7 @@ export class GmailV2 implements INodeType {
 		const resource = this.getNodeParameter('resource', 0);
 		const operation = this.getNodeParameter('operation', 0);
 		const nodeVersion = this.getNode().typeVersion;
-		const instanceId = await this.getInstanceId();
+		const instanceId = this.getInstanceId();
 
 		let responseData;