eli-225 fixing github action

Author: eddalmond1

.github/actions/lint-and-validate-specification/action.yaml

@@ -31,7 +31,8 @@ runs:
 
     - name: Lint OpenAPI Spec with Spectral
       shell: bash
-        run: spectral lint --ruleset .spectral.yaml build/specification/${{ inputs.apim-env }}/eligibility-signposting-api.yaml
+      run: |
+          spectral lint --ruleset .spectral.yaml build/specification/${{ inputs.apim-env }}/eligibility-signposting-api.yaml
 
     - name: Validate OpenAPI Spec with Swagger CLI
       shell: bash