Add --fail flag

Author: swissspidy

features/core-update.feature

@@ -15,7 +15,7 @@ Feature: Update WordPress core
       6.2
       """
 
-    When I run `curl -sS -L -o wordpress-6.2.zip https://wordpress.org/wordpress-6.2.zip`
+    When I run `curl -sS -L --fail -o wordpress-6.2.zip https://wordpress.org/wordpress-6.2.zip`
     And I run `wp core update wordpress-6.2.zip`
     Then STDOUT should be:
       """
@@ -46,7 +46,7 @@ Feature: Update WordPress core
       6.6
       """
 
-    When I run `curl -sS -L -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
+    When I run `curl -sS -L --fail -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
     And I run `wp core update wordpress-6.8.zip --format=json`
     Then STDOUT should be:
       """
@@ -67,7 +67,7 @@ Feature: Update WordPress core
       6.6
       """
 
-    When I run `curl -sS -L -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
+    When I run `curl -sS -L --fail -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
     And I run `wp core update wordpress-6.8.zip --format=csv`
     Then STDOUT should be:
       """
@@ -89,7 +89,7 @@ Feature: Update WordPress core
       6.6
       """
 
-    When I run `curl -sS -L -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
+    When I run `curl -sS -L --fail -o wordpress-6.8.zip https://wordpress.org/wordpress-6.8.zip`
     And I run `wp core update wordpress-6.8.zip --format=table`
     Then STDOUT should end with a table containing rows:
       | name | old_version | new_version | status  |