Raise satellites/satellites_used RRD max from 40 to 200 for gpsd (librenms#19655)

Modern multi-constellation GNSS receivers (GPS+GLONASS+Galileo+BeiDou,
sometimes also QZSS/NavIC) routinely report 70-80+ satellites visible
and 60+ used in fix, far exceeding the existing RRD GAUGE max of 40.

When the polled value exceeds the DS max, RRD records "Unknown" - which
graphs as 0 - even though the application is correctly returning the
real value. Visible-satellites graphs flat-line at 0 on otherwise healthy
multi-constellation feeds (e.g. Quectel LC29H + gpsd 3.25, reporting
77-79 visible / 64-68 used).

Raise both DS maxima to 200, which gives headroom for any conceivable
constellation count today (current theoretical maximum across all GNSS
is ~140 satellites) and any near-term expansion.

Tested on gpsd 3.25 + Quectel LC29H multi-constellation GNSS HAT on
Debian 13 Trixie: with max=40, `rrdtool lastupdate` showed `satellites=0`
for an extend output of `79`; after `rrdtool tune --maximum
satellites:200`, the same poll cycle records `satellites=79`
correctly.

Author: octalparrot

includes/polling/applications/gpsd.inc.php

@@ -150,8 +150,8 @@
     ->addDataset('mode', 'GAUGE', 0, 4)
     ->addDataset('hdop', 'GAUGE', 0, 100)
     ->addDataset('vdop', 'GAUGE', 0, 100)
-    ->addDataset('satellites', 'GAUGE', 0, 40)
-    ->addDataset('satellites_used', 'GAUGE', 0, 40);
+    ->addDataset('satellites', 'GAUGE', 0, 200)
+    ->addDataset('satellites_used', 'GAUGE', 0, 200);
 
 // Update basic RRD
 $basic_tags = [