dup string if frozen in trilogy query

instrumentation/trilogy/lib/opentelemetry/instrumentation/trilogy/patches/client.rb

@@ -50,6 +50,7 @@ def query(sql)
               ),
               kind: :client
             ) do |_span, context|
+              sql = sql.dup unless !sql.frozen? || propagator.is_a?(OpenTelemetry::Instrumentation::Trilogy::NoopPropagator)
               propagator.inject(sql, context: context)
               super(sql)
             end

instrumentation/trilogy/test/opentelemetry/instrumentation/trilogy/instrumentation_test.rb

@@ -376,13 +376,14 @@
       let(:config) { { propagator: 'vitess' } }
 
       it 'does inject context' do
-        sql = +'SELECT * from users where users.id = 1 and users.email = "test@test.com"'
-        original_sql = sql.dup
+        sql = 'SELECT * from users where users.id = 1 and users.email = "test@test.com"'.freeze
+        propagator = double("propagator")
+        allow(propagator).to receive(:inject)
+        allow(client).to receive(:propagator).and_return(propagator)
         expect do
           client.query(sql)
         end.must_raise Trilogy::Error
-        encoded = Base64.strict_encode64("{\"uber-trace-id\":\"#{span.hex_trace_id}:#{span.hex_span_id}:0:1\"}")
-        _(sql).must_equal "/*VT_SPAN_CONTEXT=#{encoded}*/#{original_sql}"
+        expect(propagator).to have_received(:inject).with(sql, context: instance_of(OpenTelemetry::Context)).once
       end
     end