Release 0.30.0 to qt-dev am: 69871f764c am: 24ee8c4128 am: 9daae6ba39

Original change: https://googleplex-android-review.googlesource.com/c/platform/prebuilts/remoteexecution-client/+/14747843

Change-Id: I212f64d7934af0fb27d685c42a2d3576eee2781f