chore(ci): Optimize runner usage for lightweight jobs

.github/workflows/build-and-publish.yml

@@ -11,7 +11,7 @@ on:
 jobs:
   publish-bundle:
     name: 'Publish Bundle'
-    runs-on: 'gemini-cli-ubuntu-16-core'
+    runs-on: 'ubuntu-latest'
     outputs:
       version: '${{ steps.version.outputs.version }}'
     permissions:

.github/workflows/ci.yml

@@ -201,7 +201,7 @@ jobs:
       - 'test_linux'
       - 'test_mac'
       - 'codeql'
-    runs-on: 'gemini-cli-ubuntu-16-core'
+    runs-on: 'ubuntu-latest'
     steps:
       - name: 'Check all job results'
         run: |

.github/workflows/e2e.yml

@@ -207,7 +207,7 @@ jobs:
     needs:
       - 'e2e_linux'
       - 'e2e_mac'
-    runs-on: 'gemini-cli-ubuntu-16-core'
+    runs-on: 'ubuntu-latest'
     steps:
       - name: 'Check E2E test results'
         run: |