.github/workflows: Migrate workflows to Blacksmith runners (#19)

Author: blacksmith-sh[bot]

.github/workflows/lint.yaml

@@ -12,7 +12,7 @@ on:
 
 jobs:
     lint:
-        runs-on: ubuntu-latest
+        runs-on: blacksmith-4vcpu-ubuntu-2404
         permissions:
             contents: read
             packages: read

.github/workflows/nuxt-deploy.yml

@@ -7,7 +7,7 @@ on:
             - main
 jobs:
     build:
-        runs-on: ubuntu-latest
+        runs-on: blacksmith-4vcpu-ubuntu-2404
         strategy:
             matrix:
                 node-version: [22]
@@ -39,7 +39,7 @@ jobs:
             name: github_pages
             url: ${{ steps.deployment.outputs.page_url }}
         # Specify runner + deployment step
-        runs-on: ubuntu-latest
+        runs-on: blacksmith-4vcpu-ubuntu-2404
         steps:
             - name: Deploy to GitHub Pages
               id: deployment