✨ Add Grafana node (#2411)

* ✨ Create Grafana node

* 👕 Fix lint

* ⚡ Apply feedback

* ⚡ Apply feedback

* 👕 Fix lint

* ⚡ Remove double import

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

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

@@ -0,0 +1,28 @@
+import {
+	ICredentialType,
+	INodeProperties,
+} from 'n8n-workflow';
+
+export class GrafanaApi implements ICredentialType {
+	name = 'grafanaApi';
+	displayName = 'Grafana API';
+	documentationUrl = 'grafana';
+	properties: INodeProperties[] = [
+		{
+			displayName: 'API Key',
+			name: 'apiKey',
+			type: 'string',
+			default: '',
+			required: true,
+		},
+		{
+			displayName: 'Base URL',
+			name: 'baseUrl',
+			type: 'string',
+			default: '',
+			description: 'Base URL of your Grafana instance',
+			placeholder: 'e.g. https://n8n.grafana.net/',
+			required: true,
+		},
+	];
+}