Revert "VIA-598 Allow deploy standalone job to run from main"

This reverts commit 363075a.

Approach changed to patch R1 with updated workflows instead of running
workflows from main so this commit is no longer required

Author: donna-belsey-nhs

.github/workflows/cicd-3-deploy.yaml

@@ -7,10 +7,6 @@ on:
         description: 'Environment to deploy to'
         type: environment
         required: true
-      version-to-deploy:
-        description: 'Version tag to deploy (e.g. v1.0.0)'
-        type: string
-        required: true
       release:
         description: 'Run assurance tests based on Hub URL for'
         type: choice
@@ -36,16 +32,14 @@ jobs:
       version: ${{ steps.variables.outputs.version }}
       tag: ${{ steps.variables.outputs.tag }}
     steps:
-      - name: "Checkout code"
-        uses: actions/checkout@v5
-      - name: "Check version exists"
-        shell: bash
+      - name: "Check ref"
         run: |
-          RELEASE_VERSION=$(git tag | grep -oP "^${{inputs.version-to-deploy}}$")
-          if [[ -z "$RELEASE_VERSION" ]]; then
-            echo "Invalid version number ${{inputs.version-to-deploy}} does not exist."
+          if ${{ !startsWith(github.ref, 'refs/tags/') }}; then
+            echo "❌ Only tagged deployments allowed."
             exit 1
           fi
+      - name: "Checkout code"
+        uses: actions/checkout@v5
       - name: "Set CI/CD variables"
         id: variables
         run: |
@@ -58,7 +52,7 @@ jobs:
           echo "terraform_version=$(grep "^terraform" .tool-versions | cut -f2 -d' ')" | tee -a $GITHUB_OUTPUT
           # TODO: Get the version, but it may not be the .version file as this should come from the CI/CD Pull Request Workflow
           echo "version=$(head -n 1 .version 2> /dev/null || echo unknown)" | tee -a $GITHUB_OUTPUT
-          echo "tag=${{ inputs.version-to-deploy }}" | tee -a $GITHUB_OUTPUT
+          echo "tag=${{ github.ref_name }}" | tee -a $GITHUB_OUTPUT
       - name: "List variables"
         run: |
           export BUILD_DATETIME="${{ steps.variables.outputs.build_datetime }}"