Port SQLAlchemy reporter to v3 driver structure

This completes the merge from master and re-enables the sqlalchemy
driver tests.

Change-Id: I8e6effb3f0052343d5c6c80e9edaa2a9ff360b4d
diff --git a/tests/fixtures/config/sql-driver/main.yaml b/tests/fixtures/config/sql-driver/main.yaml
new file mode 100644
index 0000000..d9868fa
--- /dev/null
+++ b/tests/fixtures/config/sql-driver/main.yaml
@@ -0,0 +1,8 @@
+- tenant:
+    name: tenant-one
+    source:
+      gerrit:
+        config-repos:
+          - common-config
+        project-repos:
+          - org/project