fix: action hooks not invoked when config is specified

[Copilot]

Post-version hooks were silently skipped whenever the action ran with a config input (including the default .github/version.yml). The CONFIG env var was built with embedded shell quotes via format(' --config \"{0}\"', inputs.config), and because $CONFIG was expanded unquoted in the run script, the path passed to the CLI was ".github/version.yml" — literal quote characters included. Since configPath was non-empty, post.ts never fell back to the default path lookup, and hooks were never invoked.

Changes

• action.yml: Replace the single-line semver $VAR... expansion with a bash array approach, passing raw values through env vars and adding flags conditionally:

# Before — embedded quotes cause literal `"` chars in the resolved path
CONFIG: "${{ inputs.config && format(' --config \"{0}\"', inputs.config) || '' }}"
# ...
run: semver $COMMAND $SUB_COMMAND ... $CONFIG

# After — raw values, flags added safely in bash
env:
  CONFIG: "${{ inputs.config }}"
run: |
  ARGS=("$COMMAND")
  [[ -n "$SUB_COMMAND" ]] && ARGS+=("$SUB_COMMAND")
  [[ -n "$PRERELEASE" ]] && ARGS+=("--prerelease" "$PRERELEASE")
  [[ -n "$CONFIG" ]] && ARGS+=("--config" "$CONFIG")
  semver "${ARGS[@]}"

This also correctly handles values with spaces (e.g. sort with multiple versions) since sort.ts already splits on whitespace internally.

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[joshuaseligman18]

Tested and verified it works when inputs.config is not empty. Happy to see the correct BASH syntax for argument expansion for properly handling all inputs and setting the pattern for future inputs.