Apply suggestions from code review

Author: v1v

.github/workflows/smoke-tests.yml

@@ -46,11 +46,13 @@ jobs:
         with:
           terraform_version: 1.2.3
 
+      - uses: elastic/oblt-actions/google/auth@v1
+
       - uses: google-github-actions/get-secretmanager-secrets@dc4a1392bad0fd60aee00bb2097e30ef07a1caae # v2.1.3
         with:
           export_to_environment: true
           secrets: |-
-            EC_API_KEY:elastic-observability/secrets/elastic-cloud-observability-team-pro-api-key
+            EC_API_KEY:elastic-observability/elastic-cloud-observability-team-pro-api-key
 
       - run: make smoketest/run TEST_DIR=./tf
       - if: always()