feat(core) Simplify authentication type (#3578)

* ⚡ Add generic auth type

* ⚡ Remove queryAuth

* ⚡ Remove bearer

* ⚡ Remove headerAuth

* ⚡ Remove basicAuth

* ⚡ Adjust tests

* ⚡ Small improvements

* 👕 Fix lint issue

packages/nodes-base/credentials/Magento2Api.credentials.ts

@@ -1,5 +1,5 @@
 import {
-	IAuthenticateBearer,
+	IAuthenticateGeneric,
 	ICredentialTestRequest,
 	ICredentialType,
 	INodeProperties,
@@ -30,8 +30,12 @@ export class Magento2Api implements ICredentialType {
 		},
 	};
 
-	authenticate = {
-		type: 'bearer',
-		properties: {},
-	} as IAuthenticateBearer;
+	authenticate: IAuthenticateGeneric = {
+		type: 'generic',
+		properties: {
+			headers: {
+				Authorization: '=Bearer {{$credentials.accessToken}}',
+			},
+		},
+	};
 }