terraform-providers.ct: 0.5.0 -> 0.6.1

0.6.0 added support for Fedora CoreOS Config v1.1.0.

 - Add Fedora CoreOS Config v1.1.0 support (NixOS#63)
 -  - Accept FCC v1.1.0 and output Ignition v3.1.0
 -  - Continue to support FCC v1.0.0 and output Ignition v3.0.0
 -  - Support merging FCC snippets into v1.0.0 or v1.1.0 FCC content
 -  - Note: Version skew among snippets and content is not supported
 - Change Container Linux Config to render Ignition v2.3.0 (NixOS#60)
 - Add zip archive format with signed checksum

pkgs/applications/networking/cluster/terraform-providers/data.nix

@@ -244,9 +244,9 @@
     {
       owner   = "poseidon";
       repo    = "terraform-provider-ct";
-      rev     = "v0.5.0";
-      version = "0.5.0";
-      sha256  = "1zqfaxlyhr9vpqj2qqpfyh1f1nfpynb7c5ris6mdmy9zin55ppni";
+      rev     = "v0.6.1";
+      version = "0.6.1";
+      sha256  = "0hh3hvi8lwb0h8x9viz5p991w94gn7354nw95b51rdmir9qi2x89";
     };
   datadog =
     {