build(docs-infra): fix CLI command github links (#30889)

The "view" links were broken because the version used to
compute the git tag for the GitHub URL included a build SHA.
Now we clean that off before using it in the URL.

The links are to the JSON schema that defines the documentation for
the command. This is accurate but confusing because the content for the
long description is stored in a separate markdown file referenced from this
schema file.
This commit adds a second set of links for the long description, if it exists,
which links directly to the markdown file.

Closes #30700

PR Close #30889

aio/tools/transforms/templates/cli/cli-command.template.html

@@ -14,7 +14,10 @@
     {$ cli.renderSyntax(doc) $}
 
     {% if doc.longDescription.length %}
-    <h2 class="no-anchor">Description</h2>
+    <h2 class="no-anchor">
+        {$ github.githubLinks(doc.longDescriptionDoc, cliVersionInfo) $}
+        Description
+    </h2>
     {$ doc.longDescription | marked $}
     {% endif%}