Fix duplicate partition errors caused by hardcoded table names

[Copilot]

Partition management functions were querying the wrong table when operating on syslog_removed, causing "Duplicate partition name" and "VALUES LESS THAN value must be strictly increasing" errors during DST transitions and concurrent partition operations.

Changes

Three functions accept a $table parameter but had hardcoded 'syslog' in their SQL queries:

• syslog_partition_create(): partition existence check
• syslog_partition_remove(): partition count query
• syslog_partition_check(): last partition lookup

Changed all three to use table_name='$table' instead of table_name='syslog'.

Example

Before:

function syslog_partition_create($table) {
    $exists = syslog_db_fetch_row("SELECT *
        FROM `information_schema`.`partitions`
        WHERE table_schema='" . $syslogdb_default . "'
        AND table_name='syslog'  // Wrong: ignores $table parameter
        ...");
}

After:

function syslog_partition_create($table) {
    $exists = syslog_db_fetch_row("SELECT *
        FROM `information_schema`.`partitions`
        WHERE table_schema='" . $syslogdb_default . "'
        AND table_name='$table'  // Correct: uses parameter
        ...");
}

Original prompt

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This section details on the original issue you should resolve

<issue_title>[4.0] - Duplicate Partition name errors</issue_title>
<issue_description>Last night I saw the following errors on all of my Cacti instances
the only thing that I can think of is that day light savings times started last night

Different mariadb versions
different cacti versions

2022/11/06 00:58:05 - CMDPHP ERROR: A DB Exec Failed!, Error: Duplicate partition name d20221106
2022/11/06 00:58:05 - CMDPHP SQL Backtrace: (/plugins/syslog/syslog_process.php[146]:syslog_partition_manage(), /plugins/syslog/functions.php[172]:syslog_partition_create(), /plugins/syslog/functions.php[208]:syslog_db_execute(), /plugins/syslog/database.php[69]:db_execute(), /lib/database.php[272]:db_execute_prepared())
2022/11/06 00:58:05 - CMDPHP ERROR: A DB Exec Failed!, Error: VALUES LESS THAN value must be strictly increasing for each partition
2022/11/06 00:56:55 - CMDPHP SQL Backtrace: (/plugins/syslog/syslog_process.php[146]:syslog_partition_manage(), /plugins/syslog/functions.php[177]:syslog_partition_create(), /plugins/syslog/functions.php[208]:syslog_db_execute(), /plugins/syslog/database.php[69]:db_execute(), /lib/database.php[272]:db_execute_prepared())
2022/11/06 00:56:55 - CMDPHP ERROR: A DB Exec Failed!, Error: Duplicate partition name d20221106
2022/11/06 00:56:55 - CMDPHP SQL Backtrace: (/plugins/syslog/syslog_process.php[146]:syslog_partition_manage(), /plugins/syslog/functions.php[172]:syslog_partition_create(), /plugins/syslog/functions.php[208]:syslog_db_execute(), /plugins/syslog/database.php[69]:db_execute(), /lib/database.php[272]:db_execute_prepared())
2022/11/06 00:56:55 - CMDPHP ERROR: A DB Exec Failed!, Error: VALUES LESS THAN value must be strictly increasing for each partition
2022/11/06 00:56:10 - CMDPHP SQL Backtrace: (/plugins/syslog/syslog_process.php[146]:syslog_partition_manage(), /plugins/syslog/functions.php[177]:syslog_partition_create(), /plugins/syslog/functions.php[208]:syslog_db_execute(), /plugins/syslog/database.php[69]:db_execute(), /lib/database.php[272]:db_execute_prepared())
2022/11/06 00:56:10 - CMDPHP ERROR: A DB Exec Failed!, Error: Duplicate partition name d20221106

</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes [4.0] - Duplicate Partition name errors Cacti/plugin_syslog#199

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