Change comment syntax from // to # in YAML

Author: KazuCocoa

.github/workflows/functional-test.yml

@@ -81,7 +81,7 @@ jobs:
     - run: |
         appium plugin install images
         appium plugin install execute-driver
-        // Workaround to keep symlink to global appium
+        # Workaround to keep symlink to global appium
         appium driver install xcuitest
         nohup appium --use-plugins=images,execute-driver --relaxed-security --log-timestamp --log-no-colors 2>&1 > appium.log &
 
@@ -158,7 +158,7 @@ jobs:
     - run: |
         appium plugin install images
         appium plugin install execute-driver
-        // Workaround to keep symlink to global appium
+        # Workaround to keep symlink to global appium
         appium driver install xcuitest
         nohup appium --use-plugins=images,execute-driver --relaxed-security --log-timestamp --log-no-colors 2>&1 > appium.log &