fix: plugins/playlist/package.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-TARFS-10293725

Author: snyk-bot

plugins/playlist/package.json

@@ -36,7 +36,7 @@
     "@backstage/plugin-permission-common": "workspace:^",
     "@backstage/plugin-permission-react": "workspace:^",
     "@backstage/plugin-playlist-common": "workspace:^",
-    "@backstage/plugin-search-react": "workspace:^",
+    "@backstage/plugin-search-react": "0.1.0",
     "@backstage/theme": "workspace:^",
     "@material-ui/core": "^4.12.2",
     "@material-ui/icons": "^4.9.1",