Added max_allowed_packet parameter to mysql dump (hestiacp#2211)

* Added max_allowed_packet parameter to mysql dump

At 10.5.10-MariaDB, I got backup error when mysql dump.

mysqldump: Error 2020: Got packet bigger than 'max_allowed_packet' when dumping table ...

my.cnf value is 1G.
max_allowed_packet = 1G

I added,

[mysqldump]
max_allowed_packet = 1G

not worked.
These are not fix the problem.

When I added --max_allowed_packet=128M to the command line, it works without any problem.

* Use --defaults-extra-file instead of max-allowed-package size

This config will also include mysql config it self for extra settings if need

Co-authored-by: Jaap Marcus <9754650+jaapmarcus@users.noreply.github.com>

Author: yigit-serin

func/db.sh

@@ -96,7 +96,7 @@ mysql_query() {
 
 mysql_dump() {
     err="/tmp/e.mysql"
-    mysqldump --defaults-file=$mycnf --single-transaction --routines -r $1 $2 2> $err
+    mysqldump --defaults-extra-file=$mycnf --single-transaction --routines -r $1 $2 2> $err
     if [ '0' -ne "$?" ]; then
         rm -rf $tmpdir
         if [ "$notify" != 'no' ]; then