Route InfluxDB 3 Enterprise docs issue submissions to support portal (#6723)

* Initial plan

* Update submit docs issue button to target support portal for InfluxDB 3 Enterprise

Co-authored-by: jstirnaman <212227+jstirnaman@users.noreply.github.com>

---------

Co-authored-by: copilot-swe-agent[bot] <198982749+Copilot@users.noreply.github.com>
Co-authored-by: jstirnaman <212227+jstirnaman@users.noreply.github.com>

layouts/partials/article/feedback.html

@@ -25,6 +25,9 @@
 - _Provide other relevant URLs (project issues, community threads, etc.)_
 ` }}
 {{ $pageGithubIssueLink := print "https://github.com/influxdata/docs-v2/issues/new?body=" $docsIssueLinkBody }}
+{{ if and (eq $product "influxdb3") (eq $version "enterprise") }}
+  {{ $pageGithubIssueLink = "https://support.influxdata.com/s/" }}
+{{ end }}
 
 <hr/>
 <div class="helpful">