chore(deps): update nginx docker tag to v1.27.2

Author: renovate[bot]

build-images.sh

@@ -30,7 +30,7 @@ buildah config --entrypoint=/ \
     --label="org.nethserver.authorizations=node:fwadm traefik@node:routeadm" \
     --label="org.nethserver.tcp-ports-demand=2" \
     --label="org.nethserver.rootfull=0" \
-    --label="org.nethserver.images=docker.io/nginx:1.26.2-alpine docker.io/drakkan/sftpgo:v2.6.2-alpine" \
+    --label="org.nethserver.images=docker.io/nginx:1.27.2-alpine docker.io/drakkan/sftpgo:v2.6.2-alpine" \
     "${container}"
 # Commit the image
 buildah commit "${container}" "${repobase}/${reponame}"