docs: Update release.md to add step for retrying failed docs build in readthedocs (argoproj#25341)

Signed-off-by: Regina Voloshin <regina.voloshin@codefresh.io>
Co-authored-by: Dan Garfield <dan.garfield@octopus.com>

Author: reggie-k

.github/ISSUE_TEMPLATE/release.md

@@ -23,6 +23,7 @@ Target GA date: ___. __, ____
     - [ ] Verify the release on [GitHub releases](https://github.com/argoproj/argo-cd/releases)
     - [ ] Verify the container image on [Quay.io](https://quay.io/repository/argoproj/argocd?tab=tags)
     - [ ] Confirm the new version appears in [Read the Docs](https://argo-cd.readthedocs.io/)
+    - [ ] Verify the docs release build in https://app.readthedocs.org/projects/argo-cd/ succeeded and retry if failed (requires an Approver with admin creds to readthedocs)
  - [ ] Announce RC1 release
    - [ ] Confirm that tweet and blog post are ready
    - [ ] Publish tweet and blog post
@@ -64,6 +65,7 @@ Target GA date: ___. __, ____
     - [ ] Verify the container image on [Quay.io](https://quay.io/repository/argoproj/argocd?tab=tags)
     - [ ] Verify the `stable` tag has been updated
     - [ ] Confirm the new version appears in [Read the Docs](https://argo-cd.readthedocs.io/)
+    - [ ] Verify the docs release build in https://app.readthedocs.org/projects/argo-cd/ succeeded and retry if failed (requires an Approver with admin creds to readthedocs)
  - [ ] Announce GA release with EOL notice
    - [ ] Confirm that tweet and blog post are ready
    - [ ] Publish tweet and blog post
@@ -81,4 +83,4 @@ Target GA date: ___. __, ____
      Thanks to all the folks who spent their time contributing to this release in any way possible!
      ```
  - [ ] (For the next release champion) Review the [items scheduled for the next release](https://github.com/orgs/argoproj/projects/25). If any item does not have an assignee who can commit to finish the feature, move it to the next release.
- - [ ] (For the next release champion) Schedule a time mid-way through the release cycle to review items again.
+ - [ ] (For the next release champion) Schedule a time mid-way through the release cycle to review items again.