[pica-etherpad-db] Update binlog config file

pica-etherpad-db/config/binary_log.cnf

+# Official documentation: https://dev.mysql.com/doc/refman/8.0/en/replication-options-binary-log.html
+#
+# The main purpose of this config file is to retain binary logs (enabled
+# by default) «just in case», for a short period of time. We dont do
+# replication, so anyway we shouldn't need the binary logs.
+#
+# Some settings also try to improve performance (experimental)
+
+
+[mysqld]
+# Limit the binlog retention to 30 hours
+binlog_expire_logs_seconds = 108000
+
+
+# Cache limits
+# Increase binlog_cache_size and binlog_stmt_cache_size
+# (default: 32 KiB) to 128 KiB
+binlog_cache_size = 131072
+binlog_stmt_cache_size = 131072
+# Decrease max_binlog_cache_size and max_binlog_stmt_cache_size
+# (default: 16 EiB) to 10 MiB.
+# (If we have transactions greater than 10 MiB there's a big problem)
+max_binlog_cache_size = 10485760
+max_binlog_stmt_cache_size = 10485760
+
+# Ignore errors
+binlog_error_action = IGNORE_ERROR

pica-etherpad-db/config/limit_binary_log.cnf

-[mysqld]
-binlog_expire_logs_seconds = 108000