docs: fixed Node.js release schedule link (#4767)

Co-authored-by: Denis DelGrosso <[email protected]>

README.md

@@ -219,7 +219,7 @@ which is the authentication library used by all Google Cloud Node.js clients.
 
 ## Supported Node.js Versions
 
-Our client libraries follow the [Node.js release schedule](https://nodejs.org/en/about/releases/).
+Our client libraries follow the [Node.js release schedule](https://nodejs.org/en/about/previous-releases).
 Libraries are compatible with all current _active_ and _maintenance_ versions of
 Node.js.
 If you are using an end-of-life version of Node.js, we recommend that you update