update ubuntu in ci

.github/workflows/build.yml

@@ -12,7 +12,7 @@ concurrency:
 jobs:
   cmake-build:
     name: Build FlexFlow Serve
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     defaults:
       run:
         shell: bash -l {0} # required to use an activated conda environment

.github/workflows/docker-build.yml

@@ -14,7 +14,7 @@ concurrency:
 jobs:
   docker-build-rocm:
     name: Build and Install FlexFlow in a Docker Container (ROCm backend)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     if: ${{ ( github.event_name != 'push' && github.event_name != 'schedule' && github.event_name != 'workflow_dispatch' ) || github.ref_name != 'inference' }}
     env:
       FF_GPU_BACKEND: "hip_rocm"
@@ -69,7 +69,7 @@ jobs:
   
   docker-build-cuda:
     name: Build and Install FlexFlow in a Docker Container (CUDA backend)
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     strategy:
       matrix:
         cuda_version: ["11.8", "12.0", "12.1", "12.2"]
@@ -119,7 +119,7 @@ jobs:
 
   notify-slack:
     name: Notify Slack in case of failure
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     needs: [docker-build-cuda, docker-build-and-publish-rocm]
     if: ${{ failure() && github.repository_owner == 'flexflow' && ( github.event_name == 'push' || github.event_name == 'workflow_dispatch' ) && github.ref_name == 'inference' }} 
     steps:

.github/workflows/pip-deploy.yml

@@ -9,7 +9,7 @@ concurrency:
 jobs:
   build-n-publish:
     name: Build and publish Python 🐍 distributions 📦 to PyPI and TestPyPI
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     permissions:
       # IMPORTANT: this permission is mandatory for trusted publishing
       id-token: write

.github/workflows/pip-install.yml

@@ -13,7 +13,7 @@ concurrency:
 jobs:
   pip-install-flexflow:
     name: Install FlexFlow with pip
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     defaults:
       run:
         shell: bash -l {0} # required to use an activated conda environment