fix(deps): update dependency hexo-generator-searchdb to v1.5.0 (#141)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -30,7 +30,7 @@
     "hexo-generator-archive": "2.0.0",
     "hexo-generator-feed": "3.0.0",
     "hexo-generator-index": "4.0.0",
-    "hexo-generator-searchdb": "1.4.1",
+    "hexo-generator-searchdb": "1.5.0",
     "hexo-renderer-marked": "7.0.1",
     "hexo-renderer-stylus": "3.0.1",
     "hexo-server": "3.0.0",