CI triggers on git tags (refs/tags/v*). jj tag set + jj git push
handles this natively without shelling out to git.

Assisted-by: Claude Opus 4.6 via pi

diff --git a/justfile b/justfile
index 412200e..e568484 100644
--- a/justfile
+++ b/justfile
@@ -1,3 +1,4 @@
 release version:
     docker manifest inspect caddy:{{version}} > /dev/null
-    jj git push --named v{{version}}=@-
+    jj tag set v{{version}} -r @-
+    jj git push