Address comments.

.github/workflows/cd-sql-engine-tests.yaml

@@ -4,18 +4,20 @@ name: MetricFlow SQL Engine Tests
 
 on:
   workflow_dispatch:
+
   pull_request:
     types: [labeled]
 
 env:
   PYTHON_VERSION: "3.8"
   EXTERNAL_ENGINE_TEST_PARALLELISM: 8
   ADDITIONAL_PYTEST_OPTIONS: "--use-persistent-source-schema"
-
 jobs:
   snowflake-tests:
     environment: DW_INTEGRATION_TESTS
-    if: ${{ github.event.label.name == 'Run Tests With Other SQL Engines' }}
+    # Run if manually triggered. Example case: run against `main` to check if something is broken.
+    # Run if a PR is given a specific label.
+    if: ${{ github.event.action != 'labeled' || github.event.label.name == 'Run Tests With Other SQL Engines' }}
     name: Snowflake Tests
     runs-on: ubuntu-latest
     steps:
@@ -35,7 +37,7 @@ jobs:
   redshift-tests:
     environment: DW_INTEGRATION_TESTS
     name: Redshift Tests
-    if: ${{ github.event.label.name == 'Run Tests With Other SQL Engines' }}
+    if: ${{ github.event.action != 'labeled' || github.event.label.name == 'Run Tests With Other SQL Engines' }}
     runs-on: ubuntu-latest
     steps:
       - name: Check-out the repo
@@ -53,7 +55,7 @@ jobs:
   bigquery-tests:
     environment: DW_INTEGRATION_TESTS
     name: BigQuery Tests
-    if: ${{ github.event.label.name == 'Run Tests With Other SQL Engines' }}
+    if: ${{ github.event.action != 'labeled' || github.event.label.name == 'Run Tests With Other SQL Engines' }}
     runs-on: ubuntu-latest
     steps:
       - name: Check-out the repo
@@ -72,7 +74,7 @@ jobs:
   databricks-tests:
     environment: DW_INTEGRATION_TESTS
     name: Databricks Tests
-    if: ${{ github.event.label.name == 'Run Tests With Other SQL Engines' }}
+    if: ${{ github.event.action != 'labeled' || github.event.label.name == 'Run Tests With Other SQL Engines' }}
     runs-on: ubuntu-latest
     steps:
       - name: Check-out the repo
@@ -94,7 +96,7 @@ jobs:
     # we may choose to execute them against a hosted instance, at which point this config will look like the other
     # engine configs in this file.
     name: Trino Tests
-    if: ${{ github.event.label.name == 'Run Tests With Other SQL Engines' }}
+    if: ${{ github.event.action != 'labeled' || github.event.label.name == 'Run Tests With Other SQL Engines' }}
     runs-on: ubuntu-latest
     services:
       trino:
@@ -116,7 +118,7 @@ jobs:
     runs-on: ubuntu-latest
     needs: [ snowflake-tests, redshift-tests, bigquery-tests, databricks-tests ]
     # Default behavior for `needs` is that it requires success. `always()` runs this action even if tests fail.
-    if: ${{ always() }}
+    if: ${{ github.event.action == 'labeled' }}
     steps:
       - name: Remove Label
         uses: actions-ecosystem/action-remove-labels@v1