Revert "ci: skip publishing upgrade-helper diff for next releases"

This reverts commit a948b6af07.

Signed-off-by: Vincenzo Scamporlino <vincenzos@spotify.com>

.github/workflows/sync_release-manifest.yml

@@ -53,10 +53,6 @@ jobs:
           github-token: ${{ secrets.GH_SERVICE_ACCOUNT_TOKEN }}
           # TODO(Rugvip): Remove the create-app dispatch once we've been on the release version for a while
           script: |
-            const releaseVersion = require('./backstage/package.json').version;
-            if(releaseVersion.includes('next')) {
-              return;
-            }
             console.log('Dispatching upgrade helper sync');
             await github.rest.actions.createWorkflowDispatch({
               owner: 'backstage',
@@ -65,6 +61,6 @@ jobs:
               ref: 'master',
               inputs: {
                 version: require('./backstage/packages/create-app/package.json').version,
-                releaseVersion
+                releaseVersion: require('./backstage/package.json').version
               },
             });