Use 'optimizationPreset: none' for objectCompiler tests that rely on things that could get optimized out

test/libyul/objectCompiler/function_series.yul

@@ -6,6 +6,8 @@ object "Contract" {
   }
 }
 
+// ====
+// optimizationPreset: none
 // ----
 // Assembly:
 //     /* "source":33:48   */

test/libyul/objectCompiler/jump_tags.yul

@@ -6,6 +6,8 @@ object "Contract" {
   }
 }
 
+// ====
+// optimizationPreset: none
 // ----
 // Assembly:
 //     /* "source":33:54   */