fix: Fixed typo in 'Publish from tag' workflow (Azure#1853)

## Description

- Fixed typo in 'Publish from tag' workflow. The workflow was
referencing the wrong task to get the tag name.

## Type of Change

<!-- Use the check-boxes [x] on the options that are relevant. -->

- [x] Update to CI Environment or utlities (Non-module effecting
changes)
- [ ] Azure Verified Module updates:
- [ ] Bugfix containing backwards compatible bug fixes, and I have NOT
bumped the MAJOR or MINOR version in `version.json`:
- [ ] Someone has opened a bug report issue, and I have included "Closes
#{bug_report_issue_number}" in the PR description.
- [ ] The bug was found by the module author, and no one has opened an
issue to report it yet.
- [ ] Feature update backwards compatible feature updates, and I have
bumped the MINOR version in `version.json`.
- [ ] Breaking changes and I have bumped the MAJOR version in
`version.json`.
  - [ ] Update to documentation

.github/workflows/platform.publish-tag.yml

@@ -87,7 +87,7 @@ jobs:
             $functionInput = @{
               Version             = "${{ steps.publish_tag.outputs.version }}"
               PublishedModuleName = "${{ steps.publish_tag.outputs.publishedModuleName }}"
-              GitTagName          = "${{ steps.publish_step.outputs.gitTagName }}"
+              GitTagName          = "${{ steps.publish_tag.outputs.gitTagName }}"
 
             }