Annotation: Add clean up job for old annotations (#26156)

Co-authored-by: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Co-authored-by: Diana Payton <52059945+oddlittlebird@users.noreply.github.com>
Co-authored-by: Arve Knudsen <arve.knudsen@gmail.com>

pkg/services/sqlstore/sqlutil/sqlutil.go

@@ -11,6 +11,7 @@ type TestDB struct {
 }
 
 func Sqlite3TestDB() TestDB {
+	// To run all tests in a local test database, set ConnStr to "grafana_test.db"
 	return TestDB{
 		DriverName: "sqlite3",
 		ConnStr:    ":memory:",