🤖 fix: correct Docker smoke test version check (#869)

Fix the version field check in Docker smoke test: use `git_describe`
instead of `version`.

The `/version` endpoint returns `git_describe`, not `version`.

_Generated with `mux`_

Author: ibetitsmike

.github/workflows/ci.yml

@@ -225,8 +225,8 @@ jobs:
             echo "Version check failed: missing mode=server"
             exit 1
           fi
-          if ! echo "$response" | grep -q '"version"'; then
-            echo "Version check failed: missing version field"
+          if ! echo "$response" | grep -q '"git_describe"'; then
+            echo "Version check failed: missing git_describe field"
             exit 1
           fi