fix: update region tag from v1beta1 to v1 for analyze-face-detection.js (#530)
fix: update region tag from v1beta1 to v1 for analyze-face-detection.js (#530)


GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples,GoogleCloudPlatform/nodejs-docs-samples