feat: add a common upload endpoint (#7806)

Co-authored-by: Sivin Varghese <64252451+iamsivin@users.noreply.github.com>

app/javascript/dashboard/store/modules/automations.js

@@ -1,5 +1,6 @@
 import * as MutationHelpers from 'shared/helpers/vuex/mutationHelpers';
 import types from '../mutation-types';
+import { uploadFile } from 'dashboard/helper/uploadHelper';
 import AutomationAPI from '../../api/automation';
 
 export const state = {
@@ -77,12 +78,8 @@ export const actions = {
     }
   },
   uploadAttachment: async (_, file) => {
-    try {
-      const { data } = await AutomationAPI.attachment(file);
-      return data.blob_id;
-    } catch (error) {
-      throw new Error(error);
-    }
+    const { blobId } = await uploadFile(file);
+    return blobId;
   },
 };