Fix automatic publication to /TR (follow up to w3c#303)

The status override parameter was `status`, which would have been correct if the
spec had used Bikeshed. For ReSpec, the correct parameter is `specStatus`.

.github/workflows/ci.yml

@@ -45,4 +45,4 @@ jobs:
           W3C_ECHIDNA_TOKEN: ${{ secrets.ECHIDNA_TOKEN }}
           W3C_WG_DECISION_URL: https://github.com/w3c/media-wg/issues/27
           W3C_BUILD_OVERRIDE: |
-            status: WD
+            specStatus: WD