roles/common: Update list of abusive IP addresses

This comes from the AbuseIPDB with a confidence level of 95%. I use
the following command to download and sort the IPs:

  $ curl -G https://api.abuseipdb.com/api/v2/blacklist -d \
    confidenceMinimum=95 -H "Key: $ABUSEIPDB_API_KEY" \
    -H "Accept: text/plain" | sort | sed -e '/:/w /tmp/ipv6.txt' \
    -e '/:/d' > /tmp/ipv4.txt

I manually add the XML formatting to each file and run them through
tidy:

  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv4.xml
  $ tidy -xml -utf8 -m -iq -w 0 roles/common/files/abusers-ipv6.xml

Note: there were no IPv6 addresses in the top 10,000 this time so I
used a dummy address for the nftables set so the syntax was valid.

roles/common/files/abuseipdb-ipv6.nft

@@ -1,7 +1,5 @@
 #!/usr/sbin/nft -f
 
 define ABUSEIPDB_IPV6 = {
-2400:6180:0:d1::4ce:d001,
-2607:5300:60:232d::,
-2607:f298:6:a066::1bf:e80e,
+fe80::bca2:37fa:fe58:414e
 }

roles/common/files/abusers-ipv6.xml

@@ -3,7 +3,4 @@
   <option name="family" value="inet6" />
   <short>abusers-ipv6</short>
   <description>A list of abusive IPv6 addresses.</description>
-  <entry>2400:6180:0:d1::4ce:d001</entry>
-  <entry>2607:5300:60:232d::</entry>
-  <entry>2607:f298:6:a066::1bf:e80e</entry>
 </ipset>