Update nextcloud:29.0.16-fpm Docker digest to dbacb6b (#650)

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

Author: renovate[bot]

29/Dockerfile

@@ -10,7 +10,7 @@ RUN set -ex; \
     go install;
 
 
-FROM nextcloud:29.0.16-fpm@sha256:41808db45e21f92e295b99b55830c5b5d3e2c25b64a3ed8fa91982c39016d8a6
+FROM nextcloud:29.0.16-fpm@sha256:dbacb6b39389cd866f75c920a3da8961f75d05bd5893d56656ff89839ac6d179
 
 COPY --from=supercronic /go/bin/supercronic /usr/local/bin/supercronic