Add agrd.eu (#367)

Service: AdGuard DNS
Sub-domain: st.agrd.eu

All records point to 1055008621.rsc.cdn77.org.
When visited, it shows it's connected to AdGuard.

Code: NoSuchKey
BucketName: adguard-websites-static
RequestId: tx00000492549393940a719-00666a06a7-6271dc0-prg
HostId: 6271dc0-prg-eu-1

source/trackers.json

@@ -1182,6 +1182,7 @@
         "adguard.org": "adguard",
         "adtidy.org": "adguard",
         "agrd.io": "adguard",
+        "agrd.eu": "adguard",
         "adguard-dns.com": "adguard_dns",
         "adguard-dns.io": "adguard_dns",
         "adguard-vpn.com": "adguard_vpn",