chore: import convertLegacyRouteRef from core-compat-api

Signed-off-by: Vincenzo Scamporlino <vincenzos@spotify.com>

plugins/tech-radar/package.json

@@ -46,6 +46,7 @@
     "start": "backstage-cli package start"
   },
   "dependencies": {
+    "@backstage/core-compat-api": "workspace:^",
     "@backstage/core-components": "workspace:^",
     "@backstage/core-plugin-api": "workspace:^",
     "@backstage/frontend-plugin-api": "workspace:^",

plugins/tech-radar/src/alpha.tsx

@@ -24,7 +24,7 @@ import {
 import React from 'react';
 import { techRadarApiRef } from './api';
 import { SampleTechRadarApi } from './sample';
-import { convertLegacyRouteRef } from '@backstage/core-plugin-api/alpha';
+import { convertLegacyRouteRef } from '@backstage/core-compat-api';
 import { rootRouteRef } from './plugin';
 
 /** @alpha */