update determine_semconv test

Author: hannahramadan

instrumentation/http/test/instrumentation/http/instrumentation_test.rb

@@ -42,25 +42,25 @@
   describe 'determine_semconv' do
     it 'returns "dup" when OTEL_SEMCONV_STABILITY_OPT_IN includes other configs' do
       OpenTelemetry::TestHelpers.with_env('OTEL_SEMCONV_STABILITY_OPT_IN' => 'http/dup, database') do
-        _(determine_semconv).must_equal('dup')
+        _(instrumentation.determine_semconv).must_equal('dup')
       end
     end
 
     it 'returns "dup" when OTEL_SEMCONV_STABILITY_OPT_IN includes both http/dup and http' do
       OpenTelemetry::TestHelpers.with_env('OTEL_SEMCONV_STABILITY_OPT_IN' => 'http/dup, http') do
-        _(determine_semconv).must_equal('dup')
+        _(instrumentation.determine_semconv).must_equal('dup')
       end
     end
 
     it 'returns "stable" when OTEL_SEMCONV_STABILITY_OPT_IN is http' do
       OpenTelemetry::TestHelpers.with_env('OTEL_SEMCONV_STABILITY_OPT_IN' => 'http') do
-        _(determine_semconv).must_equal('stable')
+        _(instrumentation.determine_semconv).must_equal('stable')
       end
     end
 
     it 'returns "old" when OTEL_SEMCONV_STABILITY_OPT_IN is empty' do
       OpenTelemetry::TestHelpers.with_env('OTEL_SEMCONV_STABILITY_OPT_IN' => '') do
-        _(determine_semconv).must_equal('old')
+        _(instrumentation.determine_semconv).must_equal('old')
       end
     end
   end