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/httpheader/useragent.go

@@ -3,8 +3,8 @@ package httpheader
 
 // UserAgent returns the User-Agent header used for measuring.
 func UserAgent() string {
-	// 9.6% as of Apr 26, 2021 according to https://techblog.willshouse.com/2012/01/03/most-common-user-agents/
-	const ua = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/89.0.4389.114 Safari/537.36"
+	// 11.0% as of May 13, 2021 according to https://techblog.willshouse.com/2012/01/03/most-common-user-agents/
+	const ua = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/90.0.4430.93 Safari/537.36"
 	return ua
 }
 
@@ -12,5 +12,5 @@ func UserAgent() string {
 // pretent to be a command line HTTP client.
 func CLIUserAgent() string {
 	// here we always put the latest version of cURL.
-	return "curl/7.73.0"
+	return "curl/7.76.1"
 }