Bump mymindstorm/setup-emsdk from 12 to 13

Bumps [mymindstorm/setup-emsdk](https://github.com/mymindstorm/setup-emsdk) from 12 to 13.
- [Release notes](https://github.com/mymindstorm/setup-emsdk/releases)
- [Commits](mymindstorm/setup-emsdk@v12...v13)

---
updated-dependencies:
- dependency-name: mymindstorm/setup-emsdk
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/main.yml

@@ -40,7 +40,7 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
-      - uses: mymindstorm/setup-emsdk@v12
+      - uses: mymindstorm/setup-emsdk@v13
 
       - name: Cache compiled GSL
         uses: actions/cache@v3