chore(ci): adopt mbx for Rust builds

.github/actionlint.yaml

@@ -3,6 +3,7 @@ self-hosted-runner:
   labels:
     - bamboo-perf
     - macos-14
+    - namespace-profile-endev-linux-amd64
     - buildjet-32vcpu-ubuntu-2204-arm
     - buildjet-16vcpu-ubuntu-2204-arm
     - buildjet-8vcpu-ubuntu-2204-arm

.github/actions/mbx/action.yml

@@ -0,0 +1,18 @@
+name: Set up mbx
+description: Select the trusted jdx server or fork-safe GitHub cache backend
+
+inputs:
+  backend:
+    description: Explicit backend for structurally trusted or untrusted callers
+    default: auto
+
+runs:
+  using: composite
+  steps:
+    - uses: jdx/mr-boxington-action@2bbb8f141e40e388b509cc68fe0bfbe7bc4b6818 # v1
+      with:
+        version: 0.4.0
+        backend: ${{ inputs.backend != 'auto' && inputs.backend || ((github.actor != 'jdx' || (github.event_name == 'pull_request' && (github.event.pull_request.head.repo.full_name != github.repository || github.event.pull_request.user.login != 'jdx'))) && 'github' || 'server') }}
+        server-url: https://cache.mise.jdx.dev
+        namespace: jdx/usage
+        oidc-audience: https://cache.mise.jdx.dev