actions: update actions-slack-status to v2.0.1 (#27440)

Fix a node deprecation warning by updating our actions-slack-status to
v2.0.1, which pulls in a newer version of the github-script action that
causes the deprecation warning.

Signed-off-by: Ryan Cragun <me@ryan.ec>

.github/workflows/test-run-enos-scenario-matrix.yml

@@ -186,28 +186,28 @@ jobs:
       # https://api.slack.com/apps/A05E31CH1LG/incoming-webhooks
       - if: ${{ always() && ! cancelled() }}
         name: Notify launch failed
-        uses: hashicorp/actions-slack-status@v2
+        uses: hashicorp/actions-slack-status@v2.0.1
         with:
           failure-message: "enos scenario launch ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.launch.outcome }}
           slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify retry launch failed
-        uses: hashicorp/actions-slack-status@v2
+        uses: hashicorp/actions-slack-status@v2.0.1
         with:
           failure-message: "retry enos scenario launch ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.launch_retry.outcome }}
           slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify destroy failed
-        uses: hashicorp/actions-slack-status@v2
+        uses: hashicorp/actions-slack-status@v2.0.1
         with:
           failure-message: "enos scenario destroy ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.destroy.outcome }}
           slack-webhook-url: ${{ secrets.SLACK_WEBHOOK_URL }}
       - if: ${{ always() && ! cancelled() }}
         name: Notify retry destroy failed
-        uses: hashicorp/actions-slack-status@v2
+        uses: hashicorp/actions-slack-status@v2.0.1
         with:
           failure-message: "retry enos scenario destroy ${{ matrix.scenario.id.filter}} failed. \nTriggering event: `${{ github.event_name }}` \nActor: `${{ github.actor }}`"
           status: ${{ steps.destroy_retry.outcome }}