Make sure character set of events, states tables is utf8 (#56012)

* Make sure character set of events, states tables is utf8

* Pylint

* Apply suggestions from code review

homeassistant/components/recorder/migration.py

@@ -1,4 +1,5 @@
 """Schema migration helpers."""
+import contextlib
 from datetime import timedelta
 import logging
 
@@ -509,15 +510,14 @@ def _apply_update(engine, session, new_version, old_version):  # noqa: C901
         )
         # Try to change the character set of the statistic_meta table
         if engine.dialect.name == "mysql":
-            try:
+            for table in ("events", "states", "statistics_meta"):
+                with contextlib.suppress(SQLAlchemyError):
                     connection.execute(
                         text(
-                        "ALTER TABLE statistics_meta CONVERT TO "
+                            f"ALTER TABLE {table} CONVERT TO "
                             "CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci"
                         )
                     )
-            except SQLAlchemyError:
-                pass
     else:
         raise ValueError(f"No schema migration defined for version {new_version}")