Build(deps): Bump @glimmer/syntax from 0.93.1 to 0.94.9

Bumps [@glimmer/syntax](https://github.com/glimmerjs/glimmer-vm/tree/HEAD/packages/@glimmer/syntax) from 0.93.1 to 0.94.9.
- [Release notes](https://github.com/glimmerjs/glimmer-vm/releases)
- [Changelog](https://github.com/glimmerjs/glimmer-vm/blob/main/CHANGELOG.md)
- [Commits](https://github.com/glimmerjs/glimmer-vm/commits/HEAD/packages/@glimmer/syntax)

---
updated-dependencies:
- dependency-name: "@glimmer/syntax"
  dependency-version: 0.94.9
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

app/assets/javascripts/discourse-widget-hbs/package.json

@@ -23,7 +23,7 @@
     "@ember/optional-features": "^2.2.0",
     "@embroider/test-setup": "^4.0.0",
     "@glimmer/component": "^1.1.2",
-    "@glimmer/syntax": "0.93.1",
+    "@glimmer/syntax": "0.94.9",
     "broccoli-asset-rev": "^3.0.0",
     "ember-cli": "~6.5.0",
     "ember-cli-inject-live-reload": "^2.1.0",

app/assets/javascripts/discourse/package.json

@@ -24,7 +24,7 @@
     "@fullcalendar/daygrid": "^6.1.18",
     "@fullcalendar/list": "^6.1.18",
     "@fullcalendar/timegrid": "^6.1.18",
-    "@glimmer/syntax": "0.93.1",
+    "@glimmer/syntax": "0.94.9",
     "@highlightjs/cdn-assets": "11.11.1",
     "@json-editor/json-editor": "2.15.2",
     "@messageformat/core": "^3.4.0",