Use ESC for secrets (#594)

Refs https://github.com/pulumi/ci-mgmt/issues/1481

.github/workflows/pull-request.yml

@@ -15,16 +15,10 @@ env:
   DOTNETVERSION: "8.0.x"
   JAVAVERSION: "11"
   ARM_CLIENT_ID: 30e520fa-12b4-4e21-b473-9426c5ac2e1e
-  ARM_CLIENT_SECRET: ${{ secrets.ARM_CLIENT_SECRET }}
   ARM_SUBSCRIPTION_ID: 0282681f-7a9e-424b-80b2-96babd57a8a1
   ARM_TENANT_ID: 706143bc-e1d4-4593-aee2-c9dc60ab9be7
-  AWS_CORP_S3_UPLOAD_ACCESS_KEY_ID: ${{ secrets.AWS_CORP_S3_UPLOAD_ACCESS_KEY_ID }}
-  AWS_CORP_S3_UPLOAD_SECRET_ACCESS_KEY: ${{ secrets.AWS_CORP_S3_UPLOAD_SECRET_ACCESS_KEY }}
   AWS_REGION: us-west-2
   AZURE_LOCATION: westus
-  CODECOV_TOKEN: ${{ secrets.CODECOV_TOKEN }}
-  DIGITALOCEAN_TOKEN: ${{ secrets.DIGITALOCEAN_TOKEN }}
-  DOCKER_HUB_PASSWORD: ${{ secrets.DOCKER_HUB_PASSWORD }}
   GOOGLE_CI_SERVICE_ACCOUNT_EMAIL: pulumi-ci@pulumi-ci-gcp-provider.iam.gserviceaccount.com
   GOOGLE_CI_WORKLOAD_IDENTITY_POOL: pulumi-ci
   GOOGLE_CI_WORKLOAD_IDENTITY_PROVIDER: pulumi-ci
@@ -33,11 +27,6 @@ env:
   GOOGLE_REGION: us-central1
   GOOGLE_ZONE: us-central1-a
   PULUMI_API: https://api.pulumi-staging.io
-  PULUMI_BOT_TOKEN: ${{ secrets.PULUMI_BOT_TOKEN }}
-  RELEASE_BOT_ENDPOINT: ${{ secrets.RELEASE_BOT_ENDPOINT }}
-  RELEASE_BOT_KEY: ${{ secrets.RELEASE_BOT_KEY }}
-  S3_COVERAGE_BUCKET_NAME: ${{ secrets.S3_COVERAGE_BUCKET_NAME }}
-  SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
 
 jobs:
   comment-on-pr:
@@ -48,9 +37,14 @@ jobs:
       uses: actions/checkout@08c6903cd8c0fde910a37f88322edcfb5dd907a8 # v5.0.0
       with:
         lfs: true    
-    - id: esc-secrets
-      name: Map environment to ESC outputs
-      uses: ./.github/actions/esc-action
+    - env:
+        ESC_ACTION_ENVIRONMENT: github-secrets/${{ github.repository_owner }}-${{ github.event.repository.name }}
+        ESC_ACTION_OIDC_AUTH: "true"
+        ESC_ACTION_OIDC_ORGANIZATION: pulumi
+        ESC_ACTION_OIDC_REQUESTED_TOKEN_TYPE: urn:pulumi:token-type:access_token:organization
+      id: esc-secrets
+      name: Fetch secrets from ESC
+      uses: pulumi/esc-action@v1
     - name: Comment PR
       uses: thollander/actions-comment-pull-request@24bffb9b452ba05a4f3f77933840a6a841d1b32b # v3.0.1
       with: