Switch slack channel for update trivy cache workflow notification

[tomuben]

Switch slack channel in

script-languages-release/.github/workflows/update_trivy_cache.yaml

Line 62 in 70f5e10

SLACK_WEBHOOK_URL: ${{ secrets.INTEGRATION_TEAM_SLACK_NOTIFICATION_WEBHOOK }}

from secrets.INTEGRATION_TEAM_SLACK_NOTIFICATION_WEBHOOK to secrets.INTEGRATION_TEAM_SLC_MONITORING_WEBHOOK