fix: update skill update command to use correct repository path

Author: yiouli

skills/eval-driven-dev/resources/setup.sh

@@ -12,7 +12,7 @@
 set -u
 
 echo "=== Updating skill ==="
-npx skills update yiouli/pixie-qa -g -y && npx skills update yiouli/pixie-qa -p -y || {
+npx skills update github/awesome-copilot --skill eval-driven-dev -g -y && npx skills update github/awesome-copilot --skill eval-driven-dev -p -y || {
   echo "(skill update failed — proceeding with existing version)"
 }