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/GithubApi.credentials.ts

@@ -1,5 +1,5 @@
 import {
-	IAuthenticateHeaderAuth,
+	IAuthenticateGeneric,
 	ICredentialTestRequest,
 	ICredentialType,
 	INodeProperties,
@@ -30,13 +30,16 @@ export class GithubApi implements ICredentialType {
 			default: '',
 		},
 	];
-	authenticate: IAuthenticateHeaderAuth = {
-		type: 'headerAuth',
+
+	authenticate: IAuthenticateGeneric = {
+		type: 'generic',
 		properties: {
-			name: 'Authorization',
-			value: '=token {{$credentials?.accessToken}}',
+			headers: {
+				Authorization: '=token {{$credentials?.accessToken}}',
+			},
 		},
 	};
+
 	test: ICredentialTestRequest = {
 		request: {
 			baseURL: '={{$credentials?.server}}',