fix broken tests

Author: cd1m0

test/samples/misc_08.instrumented.sol

@@ -1,6 +1,6 @@
 /// This file is auto-generated by Scribble and shouldn't be edited directly.
 /// Use --disarm prior to make any changes.
-pragma solidity 0.8.28;
+pragma solidity 0.8.29;
 
 enum A {
     A,

test/samples/unicode.instrumented.sol

@@ -1,6 +1,6 @@
 /// This file is auto-generated by Scribble and shouldn't be edited directly.
 /// Use --disarm prior to make any changes.
-pragma solidity 0.8.28;
+pragma solidity 0.8.29;
 
 ///  😀😀😀😀😀😀😀
 ///  #invariant "😀😀😀😀😀😀😀" true;