Instead of just replacing the entire root spec with the root spec name, include the variants as well

Author: CodeGat

.github/workflows/deploy-2-start.yml

@@ -108,7 +108,7 @@ jobs:
           SPACK_YAML_MODULEFILE_PROJECTION_YQ: .spack.modules.default.tcl.projections.${{ steps.manifest.outputs.root-spec-name }}
         run: |
           if [[ "${{ inputs.expected-root-spec-name }}" == "${{ steps.manifest.outputs.root-spec-name }}" ]]; then
-            yq -i '${{ steps.manifest.outputs.yq-root-spec }} = "${{ inputs.expected-root-spec-name }}"' spack.yaml
+            yq -i '${{ steps.manifest.outputs.yq-root-spec }} = "${{ inputs.expected-root-spec-name }} ${{ steps.manifest.outputs.root-spec-variants }}"' spack.yaml
           fi
 
           yq -i '${{ env.SPACK_YAML_MODULEFILE_PROJECTION_YQ }} = "{name}/${{ inputs.version }}"' spack.yaml