ci: refactor manual deployment CI config into 1 workflow

.github/workflows/deploy-sdk.yml

@@ -6,6 +6,13 @@ on:
   push:
     branches: [beta, main] # all branches where deployments currently occur. Make sure this list matches list of branches in  `.releaserc` file.
 
+  workflow_dispatch: # manually run this workflow. convenient way to retry a deployment. 
+    inputs:
+      existing-git-tag:
+        description: 'Type name of existing git tag (example: 1.0.3) to checkout and manually deploy'
+        required: true
+        type: string 
+
 permissions:
   contents: write # access to push the git tag
   issues: write # Bot creates an issue if there is an issue during deployment process
@@ -16,6 +23,7 @@ jobs:
     name: Deploy git tag
     runs-on: ubuntu-latest
     outputs:
+      new_release_git_head: ${{ steps.semantic-release.outputs.new_release_git_head }}
       new_release_published: ${{ steps.semantic-release.outputs.new_release_published }}
       new_release_version: ${{ steps.semantic-release.outputs.new_release_version }}
     steps:
@@ -125,9 +133,22 @@ jobs:
   deploy-sonatype:
     name: Deploy SDK to Maven Central
     needs: [deploy-git-tag]
-    if: needs.deploy-git-tag.outputs.new_release_published == 'true' # only run if a git tag was made.
+    # Only run if we can find a git tag to checkout. 
+    if: ${{ needs.deploy-git-tag.outputs.new_release_published == 'true' || github.event_name == 'workflow_dispatch' }}
     runs-on: ubuntu-latest
     steps:
+      - name: Checkout git tag that got created in previous step 
+        uses: actions/checkout@v4
+        if: ${{ needs.deploy-git-tag.outputs.new_release_published == 'true' }}
+        with:
+          ref: ${{ needs.deploy-git-tag.outputs.new_release_git_head }}
+
+      - name: Checkout git tag that was previously created 
+        uses: actions/checkout@v4
+        if: ${{ github.event_name == 'workflow_dispatch' }}
+        with:
+          ref: ${{ inputs.existing-git-tag }}
+
       - uses: actions/checkout@v4
       - name: Set up JDK
         uses: actions/setup-java@v3