purge sanity tests after run (#3433)

#### Does this PR need a docs update or release note?

- [x] ⛔ No

#### Type of change

- [x] 🤖 Supportability/Tests

#### Issue(s)

* #3431

#### Test Plan

- [x] 💚 E2E

.github/workflows/sanity-test.yaml

@@ -3,7 +3,6 @@ on:
   push:
     branches:
       - main
-      - 3135-logic
   workflow_dispatch:
     inputs:
       user:
@@ -50,6 +49,10 @@ jobs:
       run:
         working-directory: ${{ env.WORKING_DIR }}
     steps:
+##########################################################################################################################################
+
+# setup
+
       - uses: actions/checkout@v3
 
       - name: Setup Golang with cache
@@ -63,6 +66,51 @@ jobs:
       - run: mkdir ${TEST_RESULT}
       - run: mkdir ${CORSO_LOG_DIR}
 
+##########################################################################################################################################
+
+# Pre-Run cleanup
+
+      # unlike CI tests, sanity tests are not expected to run concurrently.
+      # however, the sanity yaml concurrency is set to a maximum of 1 run, preferring
+      # the latest release.  If we wait to clean up the production til after the tests
+      # It would be possible to complete all the testing but cancel the run before
+      # cleanup occurs.  Setting the cleanup before the tests ensures we always begin
+      # with a clean slate, and cannot compound data production.
+      - name: Set purge boundary
+        if: always()
+        run: |
+          echo "NOW=$(date +"%Y-%m-%d_%H-%M-%S")" >> $GITHUB_ENV
+
+      - name: Purge CI-Produced Folders for Users
+        uses: ./.github/actions/purge-m365-data
+        with:
+          user: ${TEST_USER}
+          folder-prefix: ${RESTORE_DEST_PFX}
+          older-than: ${{ env.NOW }}
+          azure-client-id: ${AZURE_CLIENT_ID}
+          azure-client-secret: ${AZURE_CLIENT_SECRET}
+          azure-tenant-id: ${AZURE_TENANT_ID}
+          m365-admin-user: ${{ secrets.M365_TENANT_ADMIN_USER }}
+          m365-admin-password: ${{ secrets.M365_TENANT_ADMIN_PASSWORD }}
+
+      - name: Purge CI-Produced Folders for Sites
+        if: always()
+        uses: ./.github/actions/purge-m365-data
+        with:
+          site: ${TEST_SITE}
+          folder-prefix: ${RESTORE_DEST_PFX}
+          libraries: ${{ vars.CORSO_M365_TEST_SITE_LIBRARIES }} 
+          older-than: ${{ env.NOW }}
+          azure-client-id: ${AZURE_CLIENT_ID}
+          azure-client-secret: ${AZURE_CLIENT_SECRET}
+          azure-tenant-id: ${AZURE_TENANT_ID}
+          m365-admin-user: ${{ secrets.M365_TENANT_ADMIN_USER }}
+          m365-admin-password: ${{ secrets.M365_TENANT_ADMIN_PASSWORD }}
+
+##########################################################################################################################################
+
+# Repository commands
+
       - name: Version Test
         run: |
           ./corso --version | grep -c 'Corso version:'
@@ -266,7 +314,7 @@ jobs:
 
 ##########################################################################################################################################
 
-# Logging & Notify
+# Logging & Notifications
 
       # Upload the original go test output as an artifact for later review.
       - name: Upload test log
@@ -307,4 +355,4 @@ jobs:
             }
         env:
           SLACK_WEBHOOK_URL: ${{ secrets.SLACK_WEBHOOK_URL }}
-          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK
+          SLACK_WEBHOOK_TYPE: INCOMING_WEBHOOK