Merge pull request #408 from filecoin-project/ubuntu-20-04-deprecation

chore: update ubuntu 20.04 to ubuntu-latest

Author: LinZexiao

.github/workflows/build_docker_buildenv.yaml

@@ -12,7 +12,7 @@ on:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/build_docker_runtime.yaml

@@ -14,7 +14,7 @@ on:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4

.github/workflows/publish.yaml

@@ -11,7 +11,7 @@ on:
 
 jobs:
   build-and-deploy:
-    runs-on: ubuntu-20.04
+    runs-on: ubuntu-latest
     steps:
       - name: Checkout
         uses: actions/checkout@v4