feat: start preparing for a cli release (#672)

This diff includes some final changes to be ready for blessing
a cli release. These changes are:

1. run `go generate ./...` to update the bundled CA

2. update the header we use for measuring

3. ensure `mk` uses the latest version of several tools

Reference issue: https://github.com/ooni/probe/issues/1845

internal/ooapi/swagger_test.go

@@ -1,5 +1,5 @@
 // Code generated by go generate; DO NOT EDIT.
-// 2022-01-04 17:58:27.730417721 +0100 CET m=+0.001561954
+// 2022-01-24 12:46:30.895457 +0100 CET m=+0.000520167
 
 package ooapi
 
@@ -9,7 +9,7 @@ const swagger = `{
     "swagger": "2.0",
     "info": {
         "title": "OONI API specification",
-        "version": "0.20220104.1165827"
+        "version": "0.20220124.1114630"
     },
     "host": "api.ooni.io",
     "basePath": "/",