Revert "chore(releases): compute the next train version in gh action"

This reverts commit 84c2510.

.github/workflows/tag-release.yml

@@ -1,6 +1,10 @@
 name: Tag Release
 on:
   workflow_dispatch:
+    inputs:
+      versionName:
+        description: 'What train is this?  eg. 275'
+        required: true
 permissions: {}
 jobs:
   tagrelease:
@@ -14,27 +18,20 @@ jobs:
           GITHUB_CONTEXT: ${{ toJson(github) }}
         run: echo "$GITHUB_CONTEXT"
         shell: bash
-
       - name: Check out code
         uses: actions/checkout@v3
-
-      - name: Compute new version number
-        run: |
-          echo versionNumber=$(git tag -l --sort=version:refname | grep -v '-' | tail -1 | awk '{print $2 + 1}' FS='.') >> "$GITHUB_ENV"
-
       - name: Create release branch
-        run: git checkout -b train-${{ env.versionNumber }}
-
+        run: git checkout -b train-${{ github.event.inputs.versionName }}
       - name: Initialize mandatory git config
         run: |
           git config user.name "${{ github.triggering_actor }}"
           git config user.email "noreply@github.com"
 
       - name: Commit update to branch
         run: |
-          git push origin train-${{ env.versionNumber }}
+          git push origin train-${{ github.event.inputs.versionName }}
 
       - name: Make a new tag
         run: |
-          git tag -a "v1.${{ env.versionNumber }}.0" -m "Train release ${{ env.versionNumber }}"
-          git push origin v1.${{ env.versionNumber }}.0
+          git tag -a "v1.${{ github.event.inputs.versionName }}.0" -m "Train release ${{ github.event.inputs.versionName }}"
+          git push origin v1.${{ github.event.inputs.versionName }}.0