Update jam.coop

Add DNS records for jam.coop relating to CDN set up using AWS CDK.

The cdn.jam.coop & cdn-dev.jam.coop CNAME records point at the Cloudfront distributions.

The other two CNAME records relate to SSL certificate validation for the Cloudfront distributions.

config/zones/jam.coop

@@ -1,6 +1,6 @@
 $ORIGIN jam.coop.
 $TTL 1h
-jam.coop. 3600 IN SOA ns1.dnsimple.com. admin.dnsimple.com. 1691514191 86400 7200 604800 300
+jam.coop. 3600 IN SOA ns1.dnsimple.com. admin.dnsimple.com. 1691514210 86400 7200 604800 300
 jam.coop. 3600 IN NS ns1.dnsimple.com.
 jam.coop. 3600 IN NS ns2.dnsimple.com.
 jam.coop. 3600 IN NS ns3.dnsimple.com.
@@ -14,3 +14,7 @@ krs._domainkey.jam.coop. 3600 IN TXT "k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBi
 jam.coop. 3600 IN TXT "v=spf1 include:mailgun.org ~all"
 jam.coop. 3600 IN MX 10 mxa.mailgun.org.
 jam.coop. 3600 IN MX 10 mxb.mailgun.org.
+_5e54ae5a45dd7f921835c9906deebb47.cdn-dev.jam.coop. 60 IN CNAME _5422c5a961b017facad2036a4df9eb1b.mhbtsbpdnt.acm-validations.aws.
+cdn-dev.jam.coop. 60 IN CNAME dxo8owtgrxi9b.cloudfront.net.
+_b9955ce298d73d709ebcfa1eb2e59c89.cdn.jam.coop. 60 IN CNAME _e50eeec0097882b7b94ba20a2da53b8f.mhbtsbpdnt.acm-validations.aws.
+cdn.jam.coop. 60 IN CNAME d3so9c06zn7pq3.cloudfront.net.