chore(homepage): link to our blog, rather than HeroDevs (nodejs#7883)

* chore; moves the link from herodevs to our ESP blog post

Signed-off-by: Claudio W. <[email protected]>

* Update apps/site/pages/en/index.mdx

Co-authored-by: Aviv Keller <[email protected]>
Signed-off-by: Claudio W. <[email protected]>

---------

Signed-off-by: Claudio W. <[email protected]>
Co-authored-by: Aviv Keller <[email protected]>

Author: ovflowd

apps/site/pages/en/index.mdx

@@ -21,7 +21,7 @@ layout: home
 
       <Button kind="primary" className="!block dark:!hidden" href="/download">Install Node.js</Button>
 
-      <Button kind="secondary" className="!block" href="https://www.herodevs.com/support/node-nes?utm_source=NodeJS+&utm_medium=Link&utm_campaign=Homepage_button">
+      <Button kind="secondary" className="!block" href="/blog/announcements/node-18-eol-support">
         <span>Get security support</span>
         <br />
         <small className="!text-xs">for Node.js 18 and below</small>