Automatic rebaseline of codesize expectations. NFC

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`:

```
codesize/test_codesize_cxx_wasmfs.json: 179778 => 179922 [+144 bytes / +0.08%]
codesize/test_codesize_files_wasmfs.json: 63836 => 64016 [+180 bytes / +0.28%]

Average change: +0.18% (+0.08% - +0.28%)
```

Author: kleisauke

test/codesize/test_codesize_cxx_wasmfs.json

@@ -1,10 +1,10 @@
 {
   "a.out.js": 7056,
   "a.out.js.gz": 3322,
-  "a.out.nodebug.wasm": 172722,
-  "a.out.nodebug.wasm.gz": 63399,
-  "total": 179778,
-  "total_gz": 66721,
+  "a.out.nodebug.wasm": 172866,
+  "a.out.nodebug.wasm.gz": 63432,
+  "total": 179922,
+  "total_gz": 66754,
   "sent": [
     "__cxa_throw",
     "_abort_js",

test/codesize/test_codesize_files_wasmfs.json

@@ -1,10 +1,10 @@
 {
   "a.out.js": 5487,
   "a.out.js.gz": 2586,
-  "a.out.nodebug.wasm": 58349,
-  "a.out.nodebug.wasm.gz": 18248,
-  "total": 63836,
-  "total_gz": 20834,
+  "a.out.nodebug.wasm": 58529,
+  "a.out.nodebug.wasm.gz": 18272,
+  "total": 64016,
+  "total_gz": 20858,
   "sent": [
     "a (emscripten_date_now)",
     "b (emscripten_err)",