[odrs-web/UBI8] Simplify compression switcheroo in the entrypoint

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit 9d3e5fb7743700e70252e24ca3d4a7fd0543433c
Author: Bartłomiej Piotrowski <bpiotrowski gnome org>
Date:   Mon Apr 25 13:04:12 2022 +0200

    Simplify compression switcheroo in the entrypoint

 entrypoint | 4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)
---
diff --git a/entrypoint b/entrypoint
index 1381ed4..06188d8 100755
--- a/entrypoint
+++ b/entrypoint
@@ -15,9 +15,7 @@ python /opt/app-root/src/cron.py taboo-import /tmp/badwords.csv
 
 while true; do
   python /opt/app-root/src/cron.py ratings /opt/app-root/src/odrs/static/ratings.json
-  cp /opt/app-root/src/odrs/static/ratings.json /opt/app-root/src/odrs/static/ratings.json.bak
-  gzip /opt/app-root/src/odrs/static/ratings.json
-  mv /opt/app-root/src/odrs/static/ratings.json.bak /opt/app-root/src/odrs/static/ratings.json
+  gzip -k -f /opt/app-root/src/odrs/static/ratings.json
   brotli -k /opt/app-root/src/odrs/static/ratings.json
   sleep 43200
 done &