⚡ Load credentials from the database (#1741)

* Changes to types so that credentials can be always loaded from DB

This first commit changes all return types from the execute functions
and calls to get credentials to be async so we can use await.

This is a first step as previously credentials were loaded in memory and
always available. We will now be loading them from the DB which requires
turning the whole call chain async.

* Fix updated files

* Removed unnecessary credential loading to improve performance

* Fix typo

* ⚡ Fix issue

* Updated new nodes to load credentials async

* ⚡ Remove not needed comment

Co-authored-by: Jan Oberhauser <jan.oberhauser@gmail.com>

packages/nodes-base/nodes/Redis/Redis.node.ts

@@ -480,12 +480,12 @@ export class Redis implements INodeType {
 		};
 
 
-		return new Promise((resolve, reject) => {
+		return new Promise(async (resolve, reject) => {
 			// TODO: For array and object fields it should not have a "value" field it should
 			//       have a parameter field for a path. Because it is not possible to set
 			//       array, object via parameter directly (should maybe be possible?!?!)
 			//       Should maybe have a parameter which is JSON.
-			const credentials = this.getCredentials('redis');
+			const credentials = await this.getCredentials('redis');
 
 			if (credentials === undefined) {
 				throw new NodeOperationError(this.getNode(), 'No credentials got returned!');