ci: update GitHub Actions workflow to use ubuntu-latest for publishing

Author: steven-pribilinskiy

.github/workflows/on-call-lint-test-build.yml

@@ -10,7 +10,7 @@ on:
 jobs:
   lint-test-build:
     name: Lint, Test, Build
-    runs-on: default
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - uses: ./.github/actions/npm-install

.github/workflows/publish.yml

@@ -16,7 +16,7 @@ jobs:
 
   release:
     name: Publish to NPM 🚀
-    runs-on: x1-core
+    runs-on: ubuntu-latest
     needs: lint-test-build
     permissions:
       id-token: write