Use Telia for Helsinki, FI instead of Hostkey (#86)

HOSTKEY's iperf3 server seems to be limited to 1G. Another option in Helsinki would be Telia and they seem to be able to reach 10G without issues.

yabs.sh

@@ -808,7 +808,7 @@ if [ -z "$SKIP_IPERF" ]; then
 	IPERF_LOCS=( \
 		"lon.speedtest.clouvider.net" "5200-5209" "Clouvider" "London, UK (10G)" "IPv4|IPv6" \
 		"iperf-ams-nl.eranium.net" "5201-5210" "Eranium" "Amsterdam, NL (10G)" "IPv4|IPv6" \
-		"spd-fisrv.hostkey.com" "5200-5209" "HOSTKEY" "Helsinki, FI (10G)" "IPv4" \
+		"speedtest.extra.telia.fi" "5201-5208" "Telia" "Helsinki, FI (10G)" "IPv4" \
 		# AFR placeholder
 		"speedtest.uztelecom.uz" "5200-5209" "Uztelecom" "Tashkent, UZ (10G)" "IPv4|IPv6" \
 		"speedtest.sin1.sg.leaseweb.net" "5201-5210" "Leaseweb" "Singapore, SG (10G)" "IPv4|IPv6" \