build: use context.sha (#6900)

.github/workflows/1-main-to-staging.yml

@@ -21,7 +21,7 @@ jobs:
             const statuses = await github.rest.repos.listCommitStatusesForRef({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              ref: context.payload.head_commit.sha
+              ref: context.sha
             })
             const status = statuses.data.find(status => status.context === 'Test / promotion')?.state || 'missing'
             core.info('Status: ' + status)

.github/workflows/test.yml

@@ -179,7 +179,7 @@ jobs:
             github.rest.repos.createCommitStatus({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              sha: context.payload.head_commit.sha,
+              sha: context.sha,
               state: 'pending',
               context: 'Test / promotion',
               description: 'Running tests...',
@@ -197,7 +197,7 @@ jobs:
             github.rest.repos.createCommitStatus({
               owner: context.repo.owner,
               repo: context.repo.repo,
-              sha: context.payload.head_commit.sha,
+              sha: context.sha,
               state: ${{ env.STATUS }} ? 'success' : 'failure',
               context: 'Test / promotion',
               description: ${{ env.STATUS }} ? 'All tests passed' : 'One or more tests failed and are blocking promotion',