Require the smoke tests to pass before attempting to promote now that they work well. Update the RELEASING.md documentation on this. (#5997)

Signed-off-by: David Venable <dlv@amazon.com>
(cherry picked from commit d75ab26)

Author: dlvenable

.github/workflows/release.yml

@@ -110,7 +110,6 @@ jobs:
 
   promote:
     runs-on: ubuntu-latest
-    if: ${{ (success() || failure()) && needs.build.result == 'success' }}
     needs: [build, validate-docker, validate-archive]
     permissions:
       contents: write

RELEASING.md

@@ -168,8 +168,6 @@ Once approved by two maintainers, the release build will be promoted to producti
 
 You can also deny a release by using _deny_ or _denied_ in the comment.
 
-**NOTE** The smoke tests currently report a build failure, even when they succeed. Thus, you need to manually verify the output.
-
 ### OpenSearch CI server build
 
 After two maintainers approve the GitHub issue, the [OpenSearch CI server](https://build.ci.opensearch.org/) will start a build.