add deprecation docs for PostgresSQL/MySQL targets (#9333)
add deprecation docs for PostgresSQL/MySQL targets (#9333)


fwessels/minio,vadmeste/minio,harshavardhana/minio,fwessels/minio,harshavardhana/minio,harshavardhana/minio,aead/minio,minio/minio,harshavardhana/minio,vadmeste/minio,aead/minio,minio/minio,NitishT/minio,fwessels/minio,harshavardhana/minio,aead/minio,aead/minio,balamurugana/minio,krisis/minio,aead/minio,krisis/minio,donatello/minio,aead/minio,aead/minio,donatello/minio,harshavardhana/minio,NitishT/minio,aead/minio,NitishT/minio,fwessels/minio,balamurugana/minio,harshavardhana/minio,harshavardhana/minio,NitishT/minio