Automatic rebaseline of codesize expectations. NFC (#24055)

This is an automatic change generated by
tools/maint/rebaseline_tests.py.

The following (2) test expectation files were updated by
running the tests with `--rebaseline`:

```
code_size/embind_hello_wasm.json: 16994 => 16978 [-16 bytes / -0.09%]
code_size/embind_val_wasm.json: 16647 => 16629 [-18 bytes / -0.11%]

Average change: -0.10% (-0.11% - -0.09%)
```

Co-authored-by: emscripten-bot <[email protected]>

Author: github-actions[bot]

test/code_size/embind_hello_wasm.json

@@ -3,8 +3,8 @@
   "a.html.gz": 380,
   "a.js": 9094,
   "a.js.gz": 3993,
-  "a.wasm": 7348,
-  "a.wasm.gz": 3378,
-  "total": 16994,
-  "total_gz": 7751
+  "a.wasm": 7332,
+  "a.wasm.gz": 3369,
+  "total": 16978,
+  "total_gz": 7742
 }

test/code_size/embind_val_wasm.json

@@ -3,8 +3,8 @@
   "a.html.gz": 380,
   "a.js": 6940,
   "a.js.gz": 3000,
-  "a.wasm": 9155,
-  "a.wasm.gz": 4722,
-  "total": 16647,
-  "total_gz": 8102
+  "a.wasm": 9137,
+  "a.wasm.gz": 4712,
+  "total": 16629,
+  "total_gz": 8092
 }