ci: quote Khronos sample smoke step name (YAML colon-in-paren)

CI on commit 67c8827 failed at workflow-load time with:

  Invalid workflow file
  You have an error in your yaml syntax on line 331

Root cause: the Phase 1 Khronos sample step name I added in 67c8827
read

  - name: Run smoke benchmark (split: vision+framework, then enhanced_vision, VGA x 5 iters)

The colon inside "(split:" is parsed by YAML 1.2 as a mapping key
separator inside the otherwise-unquoted scalar, which fails the
workflow-syntax check at run start. Every other step name in this
file uses parentheses without an inner colon, so this is the only
place that needed quoting.

Fix: quote the step name and replace the inner colon with an em-dash
to make the intent visually unambiguous:

  - name: "Run smoke benchmark (split - vision+framework, then enhanced_vision, VGA x 5 iters)"

Added an inline comment noting why this one step name is quoted so
a reviewer doesn't strip the quotes thinking they're cosmetic.

Verified with python3 -c "import yaml; yaml.safe_load(...)" that the
full workflow now loads cleanly.

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: kiritigowda

.github/workflows/ci.yml

@@ -328,7 +328,10 @@ jobs:
       # crashed, the merger silently skips its missing JSON. End
       # result: we ALWAYS get the vision+framework smoke data, and
       # we get enhanced_vision data when the sample impl cooperates.
-      - name: Run smoke benchmark (split: vision+framework, then enhanced_vision, VGA × 5 iters)
+      # Step name quoted because the `(split: ...)` parenthesised list
+      # contains a colon, which YAML 1.2 would otherwise try to parse
+      # as a mapping separator inside the unquoted scalar.
+      - name: "Run smoke benchmark (split — vision+framework, then enhanced_vision, VGA × 5 iters)"
         continue-on-error: true
         run: |
           set -eo pipefail