Bump mymindstorm/setup-emsdk from 14 to 15 in the github-actions group (#998)

Bumps the github-actions group with 1 update: [mymindstorm/setup-emsdk](https://github.com/mymindstorm/setup-emsdk).


Updates `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
  dependency-group: github-actions
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/ffishjs.yml

@@ -26,7 +26,7 @@ jobs:
         with:
           path: ${{env.EM_CACHE_FOLDER}}
           key: emsdk-${{env.EM_VERSION}}-${{ runner.os }}
-      - uses: mymindstorm/setup-emsdk@v14
+      - uses: mymindstorm/setup-emsdk@v15
         with:
           version: ${{env.EM_VERSION}}
           actions-cache-folder: ${{env.EM_CACHE_FOLDER}}
@@ -60,7 +60,7 @@ jobs:
         with:
           path: ${{env.EM_CACHE_FOLDER}}
           key: emsdk-${{env.EM_VERSION}}-${{ runner.os }}
-      - uses: mymindstorm/setup-emsdk@v14
+      - uses: mymindstorm/setup-emsdk@v15
         with:
           version: ${{env.EM_VERSION}}
           actions-cache-folder: ${{env.EM_CACHE_FOLDER}}