You are using staging server - a separate instance of the ESP Component Registry that allows you to try distribution tools and processes without affecting the real registry.
# Component: HMC8073 * Simple C driver for RF attenuator HMC8073 using SPI peripheral * See [HMC8073 datasheet](https://www.analog.com/media/en/technical-documentation/data-sheets/hmc8073.pdf)
idf.py add-dependency "espressif/hmc8073^1.0.0-alpha"