build(deps): bump mymindstorm/setup-emsdk from 14 to 15

Bumps [mymindstorm/setup-emsdk](https://github.com/mymindstorm/setup-emsdk) from 14 to 15.
- [Release notes](https://github.com/mymindstorm/setup-emsdk/releases)
- [Commits](emscripten-core/setup-emsdk@v14...v15)

---
updated-dependencies:
- dependency-name: mymindstorm/setup-emsdk
  dependency-version: '15'
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

.github/workflows/build.yml

@@ -563,7 +563,7 @@ jobs:
       - run: |
           pip install pyodide-build>=0.28.0
           echo EMSCRIPTEN_VERSION=$(pyodide config get emscripten_version) >> $GITHUB_ENV
-      - uses: mymindstorm/setup-emsdk@v14
+      - uses: mymindstorm/setup-emsdk@v15
         with:
           version: ${{ env.EMSCRIPTEN_VERSION }}
       - run: pyodide build

.github/workflows/python-release.yml

@@ -303,7 +303,7 @@ jobs:
       - run: |
           pip install pyodide-build>=0.28.0
           echo EMSCRIPTEN_VERSION=$(pyodide config get emscripten_version) >> $GITHUB_ENV
-      - uses: mymindstorm/setup-emsdk@v14
+      - uses: mymindstorm/setup-emsdk@v15
         with:
           version: ${{ env.EMSCRIPTEN_VERSION }}
       - run: pyodide build