CCIP-3547: Fix wallet key and add slack notifcations (#1475)

## Motivation
BSC_MAINNET wallet key was missing in the workflow and slack
notification is not configured for smoke test.

## Solution
Add the required wallet keys and enabled custom slack notification with
threads and post the results.

.github/workflows/ccip-live-network-tests.yml

@@ -43,18 +43,20 @@ env:
   E2E_TEST_AVALANCHE_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_BASE_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_BLAST_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
+  E2E_TEST_BSC_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_CELO_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_ETHEREUM_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_GNOSIS_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_KROMA_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
+  E2E_TEST_LINEA_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_METIS_ANDROMEDA_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_MODE_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_OPTIMISM_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_POLYGON_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
+  E2E_TEST_SCROLL_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_WEMIX_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
   E2E_TEST_ZKSYNC_MAINNET_WALLET_KEY: ${{ secrets.QA_SHARED_803C_KEY }}
 
-
 jobs:
   build-chainlink:
     environment: integration
@@ -232,7 +234,7 @@ jobs:
           should_cleanup: false
 
   ccip-smoke-test:
-    name: CCIP smoke Test ${{ matrix.lanes.name }}
+    name: 'CCIP Smoke - Source: ${{ matrix.lanes.name }}'
     environment: integration
     runs-on: ubuntu-latest
     needs: [ build-chainlink ]
@@ -320,7 +322,7 @@ jobs:
           org-id: ${{ secrets.GRAFANA_INTERNAL_TENANT_ID }}
           basic-auth: ${{ secrets.GRAFANA_INTERNAL_BASIC_AUTH }}
           hostname: ${{ secrets.GRAFANA_INTERNAL_HOST }}
-          this-job-name: CCIP Smoke Test
+          this-job-name: 'CCIP Smoke - Source: ${{ matrix.lanes.name }}'
         continue-on-error: true
       - name: Checkout the repo
         if: ${{ matrix.lanes.enabled == true }}
@@ -392,4 +394,87 @@ jobs:
           aws_registries: ${{ secrets.QA_AWS_ACCOUNT_NUMBER }}
           cache_key_id: ccip-smoke-${{ env.MOD_CACHE_VERSION }}
           cache_restore_only: "true"
-          should_cleanup: false
+          should_cleanup: false
+
+  # Custom reporting Jobs
+  start-slack-thread:
+    name: Start Slack Thread
+    if: ${{ always() && needs.ccip-smoke-test.result != 'skipped' && needs.ccip-smoke-test.result != 'cancelled' }}
+    environment: integration
+    outputs:
+      thread_ts: ${{ steps.slack.outputs.thread_ts }}
+    permissions:
+      checks: write
+      pull-requests: write
+      id-token: write
+      contents: read
+    runs-on: ubuntu-latest
+    needs: [ ccip-smoke-test ]
+    steps:
+      - name: Debug Result
+        run: echo ${{ join(needs.*.result, ',') }}
+      - name: Main Slack Notification
+        uses: slackapi/slack-github-action@6c661ce58804a1a20f6dc5fbee7f0381b469e001 # v1.25.0
+        id: slack
+        with:
+          channel-id: "#test-run-notifications"
+          payload: |
+            {
+              "attachments": [
+                {
+                  "color": "${{ contains(join(needs.*.result, ','), 'failure') && '#C62828' || '#2E7D32' }}",
+                  "blocks": [
+                    {
+                      "type": "header",
+                      "text": {
+                        "type": "plain_text",
+                        "text": "CCIP Mainnet Smoke tests ${{ contains(join(needs.*.result, ','), 'failure') && ':x:' || ':white_check_mark:'}}",
+                        "emoji": true
+                      }
+                    },
+                    {
+                      "type": "divider"
+                    },
+                    {
+                      "type": "section",
+                      "text": {
+                        "type": "mrkdwn",
+                        "text": "<${{ github.server_url }}/${{ github.repository }}/${{contains(github.ref_name, 'release') && 'releases/tag' || 'tree'}}/${{ github.ref_name }}|${{ github.ref_name }}> | <${{ github.server_url }}/${{ github.repository }}/commit/${{ github.sha }}|${{ github.sha }}> | <${{ github.server_url }}/${{ github.repository }}/actions/runs/${{ github.run_id }}|Run>"
+                      }
+                    }
+                  ]
+                }
+              ]
+            }
+        env:
+          SLACK_BOT_TOKEN: ${{ secrets.QA_SLACK_API_KEY }}
+
+  post-test-results-to-slack:
+    name: Post Test Results
+    if: ${{ always() && needs.start-slack-thread.result != 'skipped' && needs.start-slack-thread.result != 'cancelled' }}
+    environment: integration
+    permissions:
+      checks: write
+      pull-requests: write
+      id-token: write
+      contents: read
+    runs-on: ubuntu-latest
+    needs: start-slack-thread
+    steps:
+      - name: Checkout the repo
+        uses: actions/checkout@9bb56186c3b09b4f86b1c65136769dd318469633 # v4.1.2
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.event.merge_group.head_sha }}
+      - name: Post Test Results
+        uses: ./.github/actions/notify-slack-jobs-result
+        with:
+          github_token: ${{ github.token }}
+          github_repository: ${{ github.repository }}
+          workflow_run_id: ${{ github.run_id }}
+          github_job_name_regex: ^CCIP Smoke (.*)$
+          message_title: CCIP Mainnet Smoke test
+          slack_channel_id: "#test-run-notifications"
+          slack_bot_token: ${{ secrets.QA_SLACK_API_KEY }}
+          slack_thread_ts: ${{ needs.start-slack-thread.outputs.thread_ts }}
+
+  # End Reporting Jobs