Here are direct links:
https://readonlyrest-data.s3-eu-west-1.amazonaws.com/build/1.18.7/readonlyrest-1.18.7_es7.2.0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIA5SJIWBO54AGBERLX/20200130/eu-west-1/s3/aws4_request&X-Amz-Date=20200130T191902Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=3f27ab1f18ccb8b877b29fbeadd3afa873d6e25d4353b7be8a5e8225ffe364c5
https://readonlyrest-data.s3-eu-west-1.amazonaws.com/build/1.18.10/readonlyrest-1.18.10_es7.2.0.zip?X-Amz-Algorithm=AWS4-HMAC-SHA256&X-Amz-Credential=AKIA5SJIWBO54AGBERLX/20200130/eu-west-1/s3/aws4_request&X-Amz-Date=20200130T191828Z&X-Amz-Expires=604800&X-Amz-SignedHeaders=host&X-Amz-Signature=835f1c700a02edd333a91180e0b2b998ddebf615647dd114e28440f38d7e3d80
(1.18.10 was the last version before 1.19.0)