test: Ensure telemetry uses latest Iglu schemas (meltano#6820)

tests/meltano/core/tracking/test_schemas.py

@@ -0,0 +1,33 @@
+from __future__ import annotations
+
+from pathlib import Path
+
+from meltano.core.tracking import schemas
+
+schemas_dir = (
+    Path(__file__).parents[4]
+    / "src"
+    / "meltano"
+    / "core"
+    / "tracking"
+    / "iglu-client-embedded"
+    / "schemas"
+    / "com.meltano"
+)
+
+versions_in_use = {
+    x.name: x.version.split("-")
+    for x in vars(schemas).values()  # noqa: WPS421
+    if isinstance(x, schemas.IgluSchema)
+}
+
+versions_available = {
+    schema_dir.stem: max(
+        x.stem.split("-") for x in (schema_dir / "jsonschema").iterdir()
+    )
+    for schema_dir in schemas_dir.iterdir()
+}
+
+
+def test_using_latest_schemas():
+    assert versions_in_use == versions_available