ci(workflows): standardize dispatch UI text across fleet

Three small UI tweaks for consistency with the rest of the fleet:

- provenance.yml: `name:` → `📦 Publish to npm`. Every fleet repo
  now reads the same in the Actions sidebar.
- weekly-update.yml: `name: 🔄 Weekly Dependency Update` →
  `🔄 Weekly Update`. The workflow has grown beyond dep updates
  (lockstep sweeps, security advisories, cascade housekeeping).
- provenance.yml dry-run input description: long paragraph →
  `Dry run (--dry-run on npm publish, default: true)`. The
  previous text wrapped to 3+ lines in the dispatch popover and
  buried the actual default behavior.

No behavior change — pure display strings.

Author: jdalton

.github/workflows/provenance.yml

@@ -1,4 +1,4 @@
-name: 📦 Publish
+name: 📦 Publish to npm
 
 # Dependencies:
 #   - SocketDev/socket-registry/.github/workflows/provenance.yml

.github/workflows/weekly-update.yml

@@ -1,4 +1,4 @@
-name: 🔄 Weekly Dependency Update
+name: 🔄 Weekly Update
 
 on:
   schedule: