Fix project name in goreleaser config

- Add project_name: gitcaddy-runner so binaries are named correctly
- Update gitea_urls to point to git.marketally.com instead of gitea.com

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

.goreleaser.yaml

@@ -1,5 +1,7 @@
 version: 2
 
+project_name: gitcaddy-runner
+
 before:
   hooks:
     - go mod tidy
@@ -108,8 +110,8 @@ nightly:
   version_template: "nightly"
 
 gitea_urls:
-  api: https://gitea.com/api/v1
-  download: https://gitea.com
+  api: https://git.marketally.com/api/v1
+  download: https://git.marketally.com
 
 release:
   extra_files: