Turn verify-staged-artifacts into workflow_dispatch

We cannot reuse workflow in this repo from another one.
So, fix common workflow to use `gh workflow run` instead in the
context of this repository and branch.
And fix `verify-staged-artifacts.yml` workflow's `on` to the `workflow_dispatch`
to satisfy `gh workflow run` requirements

.github/workflows/verify-staged-artifacts.yml

@@ -1,7 +1,7 @@
 name: Verify Staged Artifacts
 
 on:
-  workflow_call:
+  workflow_dispatch:
     inputs:
       releaseVersion:
         description: 'Release version like 3.0.0-M1, 3.1.0-RC1, 3.2.0 etc.'
@@ -15,7 +15,7 @@ jobs:
 
       - uses: jfrog/setup-jfrog-cli@v3
         with:
-          version: 2.50.4
+          version: 2.51.1
         env:
           JF_ENV_SPRING: ${{ secrets.JF_ARTIFACTORY_SPRING }}