Add logrotate (#25)

Adds logrotate, running every day at 00:00.

Rotates `letsencrypt.log`, keeping 10 versions.
Rotates `renew.log` at 100 megabytes

Closes #10

Reviewed-on: #25
Co-authored-by: MrMeeb <mrmeeb@noreply.git.mrmeeb.stream>
Co-committed-by: MrMeeb <mrmeeb@noreply.git.mrmeeb.stream>

root/logrotate.conf

@@ -0,0 +1,15 @@
+missingok
+
+/config/logs/letsencrypt.log {
+    daily
+    rotate 10
+    postrotate
+        find /config/logs -type f -regex '.*letsencrypt\.log\.\(.[2-9]\|[2-9].\|[1-9][0-9]\{2,\}\).*' -delete
+    endscript
+}
+
+/config/logs/renew.log {
+    rotate 5
+    size 100k
+    compress
+}