N8N-4126 credentials injection and testing on specific nodes (#3816)

* Add credential injection and testing to Lemlist, Uproc, Supabase, Segment, Phantombuster, Mailgun and Dropcontact

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

@@ -1,4 +1,10 @@
-import { ICredentialType, INodeProperties } from 'n8n-workflow';
+import {
+	ICredentialDataDecryptedObject,
+	ICredentialTestRequest,
+	ICredentialType,
+	IHttpRequestOptions,
+	INodeProperties,
+} from 'n8n-workflow';
 
 export class UProcApi implements ICredentialType {
 	name = 'uprocApi';
@@ -19,4 +25,22 @@ export class UProcApi implements ICredentialType {
 			default: '',
 		},
 	];
+	async authenticate(
+		credentials: ICredentialDataDecryptedObject,
+		requestOptions: IHttpRequestOptions,
+	): Promise<IHttpRequestOptions> {
+		const token = Buffer.from(`${credentials.email}:${credentials.apiKey}`).toString('base64');
+		requestOptions.headers = {
+			...requestOptions.headers,
+			Authorization: `Basic ${token}`,
+		};
+		return requestOptions;
+	}
+	test: ICredentialTestRequest = {
+		request: {
+			baseURL: 'https://api.uproc.io/api/v2',
+			url: '/profile',
+			method: 'GET',
+		},
+	};
 }