fix: align crates publish workflow trigger with Docker build (#333)

* fix: add workflow_dispatch trigger to crates publish workflow

The release:published event doesn't fire when GitHub releases are created
by other actions (using GITHUB_TOKEN), which prevents automatic crates.io
publishing. Adding workflow_dispatch allows manual triggering as a fallback.

* fix: align crates publish workflow trigger with Docker build

The crates publish workflow was triggering on 'release: published' event
which wasn't firing reliably. Changed to trigger on tag push (matching
Docker build workflow) for consistent behavior.

Both workflows now trigger on 'push: tags: v*' ensuring automatic
publication when version tags are pushed.

Author: joshrotenberg

.github/workflows/publish-crates.yml

@@ -1,8 +1,9 @@
 name: Publish to crates.io
 
 on:
-  release:
-    types: [published]
+  push:
+    tags:
+      - "v*"
   workflow_dispatch:
 
 env: