Merge branch 'alin/replica-backtrace-endpoint' into 'master'

feat: Replica backtrace endpoint

Implement a `/_/threads` replica endpoint that produces a backtrace of all
replica process threads.

This uses the rstack_self crate and requires the replica to start a child
process (also a replica process with a specific command-line flag). This child
process then collects the stack traces of all parent process threads, outputs
them to stdout and terminates. The (parent) replica then reads this output and
produces an HTTP response from it. 

See merge request dfinity-lab/public/ic!11928

.devcontainer/devcontainer.json

@@ -1,5 +1,5 @@
 {
-  "image": "dfinity/ic-build:5db577eac5ab2bcdbc26c754a2857d31c690b98f742c6da60fc30cb81995c601",
+  "image": "dfinity/ic-build:4ed8c4a9b1f77d0bdd889199be6e8722b70766035e41f694d52d43137fef7ef1",
   "remoteUser": "ubuntu",
   "runArgs": [
     "--hostname",
@@ -57,4 +57,4 @@
       ]
     }
   }
-}
+}

.gitlab/CODEOWNERS

@@ -159,6 +159,7 @@ go_deps.bzl               @dfinity-lab/teams/idx
 /rs/monitoring/adapter_metrics/         @dfinity-lab/teams/networking-team
 /rs/monitoring/adapter_metrics_server/  @dfinity-lab/teams/networking-team
 /rs/monitoring/adapter_metrics_service/  @dfinity-lab/teams/networking-team
+/rs/monitoring/backtrace/               @dfinity-lab/teams/message-routing-owners @dfinity-lab/teams/networking-team
 /rs/monitoring/onchain_observability/   @dfinity-lab/teams/networking-team
 /rs/nervous_system/                     @dfinity-lab/teams/nns-team
 /rs/nns/                                @dfinity-lab/teams/nns-team