docs: fix node release schedule link (#1841)

Co-authored-by: Jeffrey Rennie <rennie@google.com>

synthtool/gcp/templates/node_library/README.md

@@ -87,7 +87,7 @@ also contains samples.
 {% endif %}
 ## 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://github.com/nodejs/release#release-schedule).
 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

synthtool/gcp/templates/node_mono_repo_library/README.md

@@ -87,7 +87,7 @@ also contains samples.
 {% endif %}
 ## 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://github.com/nodejs/release#release-schedule).
 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

tests/fixtures/node_templates/no_version/README.md

@@ -54,7 +54,7 @@ also contains samples.
 
 ## 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://github.com/nodejs/release#release-schedule).
 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

tests/fixtures/nodejs-dlp-with-staging/README.md

@@ -163,7 +163,7 @@ also contains samples.
 
 ## 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://github.com/nodejs/release#release-schedule).
 Libraries are compatible with all current _active_ and _maintenance_ versions of
 Node.js.
 

tests/fixtures/nodejs-dlp/README.md

@@ -163,7 +163,7 @@ also contains samples.
 
 ## 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://github.com/nodejs/release#release-schedule).
 Libraries are compatible with all current _active_ and _maintenance_ versions of
 Node.js.
 

tests/fixtures/nodejs_mono_repo_with_staging/packages/dlp/README.md

@@ -163,7 +163,7 @@ also contains samples.
 
 ## 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://github.com/nodejs/release#release-schedule).
 Libraries are compatible with all current _active_ and _maintenance_ versions of
 Node.js.
 

tests/fixtures/nodejs_mono_repo_without_version/packages/no_version/README.md

@@ -54,7 +54,7 @@ also contains samples.
 
 ## 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://github.com/nodejs/release#release-schedule).
 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