Bump vanta-mcp-plugin SHA to 345d86b5

.claude-plugin/marketplace.json

@@ -2121,7 +2121,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/VantaInc/vanta-mcp-plugin.git",
-        "sha": "a9dac8bef2ccda299b3a4ba7a1bc7e0dbb7195ac"
+        "sha": "345d86b55faa649e955b7ea5569cf52d8425c2d5"
       },
       "homepage": "https://help.vanta.com/en/articles/14094979-connecting-to-vanta-mcp#h_887ce3f337"
     },