Run migration tests against all supported backends

.github/workflows/qc_checks.yaml

@@ -559,53 +559,6 @@ jobs:
       - name: Data Export Test
         uses: ./.github/actions/migration
 
-  migration-tests:
-    name: Tests - Migrations [PostgreSQL]
-    runs-on: ubuntu-latest
-    needs: paths-filter
-    if: ${{ (needs.paths-filter.outputs.force == 'true') || (github.ref == 'refs/heads/master' && needs.paths-filter.outputs.migrations == 'true') }}
-
-    env:
-      INVENTREE_DB_ENGINE: django.db.backends.postgresql
-      INVENTREE_DB_NAME: inventree
-      INVENTREE_DB_USER: inventree
-      INVENTREE_DB_PASSWORD: password
-      INVENTREE_DB_HOST: "127.0.0.1"
-      INVENTREE_DB_PORT: 5432
-      INVENTREE_DEBUG: False
-      INVENTREE_LOG_LEVEL: WARNING
-      INVENTREE_PLUGINS_ENABLED: false
-
-    services:
-      postgres:
-        image: postgres:17
-        env:
-          POSTGRES_USER: inventree
-          POSTGRES_PASSWORD: password
-        ports:
-          - 5432:5432
-
-    steps:
-      - uses: actions/checkout@3d3c42e5aac5ba805825da76410c181273ba90b1 # v7.0.1
-        with:
-          persist-credentials: false
-      - name: Environment Setup
-        uses: ./.github/actions/setup
-        with:
-          apt-dependency: gettext poppler-utils libpq-dev
-          pip-dependency: psycopg
-          dev-install: true
-          update: true
-      - name: Run Tests
-        run: invoke dev.test --check --migrations --report --coverage --translations
-      - name: Upload coverage reports to Codecov
-        uses: codecov/codecov-action@fb8b3582c8e4def4969c97caa2f19720cb33a72f # v7.0.0
-        if: always()
-        with:
-          token: ${{ secrets.CODECOV_TOKEN }}
-          slug: inventree/InvenTree
-          flags: migrations
-
   migrations-checks:
     name: Tests - Full Migration [SQLite]
     runs-on: ubuntu-latest