Migrate workflows to Blacksmith

Author: blacksmith-sh[bot]

.github/workflows/ci.yml

@@ -14,9 +14,9 @@ jobs:
           - { otp: '26', elixir: '1.16' }
         os:
           - name: Linux
-            runner: ubuntu-latest
+            runner: blacksmith-2vcpu-ubuntu-2404
         include:
-          - os: { name: Windows, runner: 'win22' }
+          - os: { name: Windows, runner: blacksmith-2vcpu-windows-2025 }
             beam: { otp: '28', elixir: '1.19' }
     steps:
       - uses: actions/checkout@v4
@@ -101,15 +101,15 @@ jobs:
         run: CIRCUITS_UART_PORT1=tnt0 CIRCUITS_UART_PORT2=tnt1 mix test
 
   checks:
-    runs-on: ubuntu-latest
+    runs-on: blacksmith-2vcpu-ubuntu-2404
     name: Extra checks
     steps:
       - uses: actions/checkout@v4
 
       - uses: erlef/setup-beam@v1
         with:
-          otp-version: 26
-          elixir-version: 1.15
+          otp-version: 28
+          elixir-version: 1.19
 
       - name: Retrieve Mix Dependencies Cache
         uses: actions/cache@v3