Fix JSDoc indentation in getAllInstances example

[Copilot]

Fixes inconsistent spacing in JSDoc example code where lines 612, 615, and 620 used one space after the asterisk instead of three.

Changes:

• Normalized JSDoc example indentation in getAllInstances() to use three spaces after asterisk, matching conventions used elsewhere in the file (e.g., listInstanceIds() example)

// Before (inconsistent - 1 space)
* // Iterate over all matching instances
* const logger = new ConsoleLogger();
* for await (const instance of pageable) {
*   logger.info(instance.instanceId);

// After (consistent - 3 spaces)
   * // Iterate over all matching instances
   * const logger = new ConsoleLogger();
   * for await (const instance of pageable) {
   *   logger.info(instance.instanceId);

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