Fix installing espeak-ng-data directory

[csukuangfj]

See #3171 (comment)

cc @ljnhst

[gemini-code-assist]

Code Review

This pull request updates the 'piper-phonemize' dependency in CMake to a newer commit hash and updates its SHA256 checksum. Feedback recommends restoring the fallback mirror URL ('piper_phonemize_URL2') with the updated commit hash to ensure build reliability when GitHub is inaccessible. Additionally, the reviewer suggests removing a non-portable, environment-specific absolute path from the list of possible local file locations.

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[gemini-code-assist]

The fallback mirror URL (piper_phonemize_URL2) was removed. Removing the mirror URL prevents successful builds in environments where GitHub is inaccessible or slow. Consider keeping the mirror URL and updating it to the new commit hash.

  set(piper_phonemize_URL  "https://github.com/csukuangfj/piper-phonemize/archive/f3ff95afc03640bc1399e113e83361192a2fafb4.zip")
  set(piper_phonemize_URL2 "https://hf-mirror.com/csukuangfj/sherpa-onnx-cmake-deps/resolve/main/piper-phonemize-f3ff95afc03640bc1399e113e83361192a2fafb4.zip")
  set(piper_phonemize_HASH "SHA256=d9cca4e2bdc7d6dd8dffb96a4668283dbd3f77a9c194a3e530c1e8eba9406a5d")

[gemini-code-assist]

The absolute path /star-fj/fangjun/download/github/... is specific to a local development environment and is not portable. It should be removed from the list of possible file locations to keep the CMake configuration clean and generic.

    /tmp/piper-phonemize-f3ff95afc03640bc1399e113e83361192a2fafb4.zip

[gemini-code-assist]

Add the fallback mirror URL (piper_phonemize_URL2) back to FetchContent_Declare to ensure that the build can fall back to the mirror if the primary GitHub URL is unreachable.

    URL
      ${piper_phonemize_URL}
      ${piper_phonemize_URL2}
    URL_HASH          ${piper_phonemize_HASH}

[coderabbitai]

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