Add exec@v1.4.0-17-gb17e579e to mixin feed

Signed-off-by: Porter Bot <bot@porter.sh>

Author: Porter Bot

mixins/atom.xml

@@ -1,7 +1,7 @@
 <feed xmlns="http://www.w3.org/2005/Atom">
     <id>https://porter.sh/mixins</id>
     <title>Porter Mixins</title>
-    <updated>2025-12-21T16:38:47Z</updated>
+    <updated>2025-12-27T20:19:52Z</updated>
     <link rel="self" href="https://cdn.porter.sh/mixins/atom.xml"/>
     <author>
         <name>Porter Authors</name>
@@ -23,7 +23,7 @@
     <entry>
         <id>https://cdn.porter.sh/mixins/exec/canary</id>
         <title>exec @ canary</title>
-        <updated>2025-12-21T16:38:47Z</updated>
+        <updated>2025-12-27T20:19:52Z</updated>
         <category term="exec"/>
         <content>canary</content>
         <link rel="download" href="https://cdn.porter.sh/mixins/exec/canary/exec-darwin-amd64" />