feat: add new GitHub workflow for dbsync config tests

Author: ArturWieczorek

.github/env_nightly_dbsync_config

@@ -0,0 +1,7 @@
+CLUSTERS_COUNT=1
+CLUSTER_ERA=conway
+COMMAND_ERA=conway
+MARKEXPR=dbsync or dbsync_config
+DBSYNC_REV=13.6.0.4
+DBSYNC_TAR_URL=https://github.com/IntersectMBO/cardano-db-sync/releases/download/13.6.0.4/cardano-db-sync-13.6.0.4-linux.tar.gz
+DBSYNC_SKIP_INDEXES=true

.github/workflows/nightly_dbsync_config.yaml

@@ -0,0 +1,19 @@
+name: Nightly tests dbsync
+
+on:
+  schedule:
+    - cron: '15 01 * * *'
+  workflow_dispatch:
+
+jobs:
+  nightly_job:
+    if: github.repository_owner == 'IntersectMBO' || github.event_name != 'schedule'
+    # reusable workflow from local repo and same branch as this config
+    uses: ./.github/workflows/regression_reusable.yaml
+    with:
+      env-path: .github/env_nightly_dbsync_config
+    secrets:
+      GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+      CI_FAIL_MAILS: ${{ secrets.NIGHTLY_FAIL_MAILS }}
+      GMAIL_USERNAME: ${{ secrets.GMAIL_USERNAME }}
+      GMAIL_PASSWORD: ${{ secrets.GMAIL_PASSWORD }}