Release 3.10.0 beta.3 (#345)

* chore: run go-generate

See https://github.com/ooni/probe/issues/1468

* chore: update all the dependencies

Unclear to me why `go get -u -v ./...` did not actually update
all of them and I needed to spell out each of them and force to
update by going `go get -u -v $pkg@latest` ¯\_(ツ)_/¯.

Part of https://github.com/ooni/probe/issues/1468

* fix(c/o/i/d/actions_test.go): ensure we check for return value

Part of https://github.com/ooni/probe/issues/1468

* chore: update the user agents we use

See https://github.com/ooni/probe/issues/1468

* chore: set version to 3.10.0-beta.3

See https://github.com/ooni/probe/issues/1468

* chore: use probe-assets v0.3.1

Part of https://github.com/ooni/probe/issues/1468

internal/engine/ooapi/clientcall_test.go

@@ -1,5 +1,5 @@
 // Code generated by go generate; DO NOT EDIT.
-// 2021-04-26 14:35:20.134323167 +0200 CEST m=+0.000073269
+// 2021-05-12 09:15:04.198485035 +0200 CEST m=+0.000114145
 
 package ooapi