chore: update circleci-toolkit orb to 3.4.1 (#1501)

## Summary

- Updates `jerus-org/circleci-toolkit` orb from 3.4.0 to 3.4.1

## Changes in 3.4.1

This version removes the redundant miri component installation step from
the `rust_miri` job since miri and rust-src are now pre-installed in the
ci-rust container.

This should fix the miri job failures that were occurring due to
permission denied errors when attempting to install rust-src at runtime.

## Test plan

- [ ] CI passes with the updated orb version
- [ ] Miri tests complete successfully

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Author: jerus-bot

.circleci/audit.yml

@@ -5,7 +5,7 @@
 version: 2.1
 
 orbs:
-  toolkit: jerus-org/[email protected].0
+  toolkit: jerus-org/[email protected].1
 
 parameters:
   min-rust-version:

.circleci/config.yml

@@ -43,7 +43,7 @@ parameters:
     description: "Optional flag to allows successful exit if no pull request in CI environment"
 
 orbs:
-  toolkit: jerus-org/[email protected].0
+  toolkit: jerus-org/[email protected].1
 
 # Reusable command to set reproducible-build environment variables.
 commands:

.circleci/github_release.yml

@@ -5,7 +5,7 @@
 version: 2.1
 
 orbs:
-  toolkit: jerus-org/[email protected].0
+  toolkit: jerus-org/[email protected].1
 
 parameters:
   min-rust-version: