bump(spanner): 105d2e91 → d56cd5ba (#4839)

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

.claude-plugin/marketplace.json

@@ -3309,7 +3309,7 @@
       "source": {
         "source": "url",
         "url": "https://github.com/gemini-cli-extensions/spanner.git",
-        "sha": "105d2e912d79cff5977faad888bbe22e2d644013"
+        "sha": "d56cd5ba0efc521db9e9406bca7fe68616562dd3"
       },
       "homepage": "https://github.com/gemini-cli-extensions/spanner"
     },