chore: Update functional-test.yaml ubuntu-20.04

.github/workflows/functional-test.yaml

@@ -10,7 +10,7 @@ jobs:
   functional-test:
     name: functional-test
     if: github.repository_owner == 'keikoproj'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
 
     steps:
 
@@ -57,4 +57,4 @@ jobs:
           aws eks update-kubeconfig --name $EKS_CLUSTER
           make install
           kubectl set image -n instance-manager deployment/instance-manager instance-manager=keikoproj/instance-manager:master
-          make bdd
+          make bdd

.github/workflows/push.yml

@@ -10,7 +10,7 @@ jobs:
   push:
     name: push
     if: github.repository_owner == 'keikoproj'
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
 
     - name: Check out code into the Go module directory

.github/workflows/unit-test.yml

@@ -10,7 +10,7 @@ jobs:
   unit-test:
     if: github.repository_owner == 'keikoproj'
     name: unit-test
-    runs-on: ubuntu-18.04
+    runs-on: ubuntu-20.04
     steps:
     - name: Set up Go 1.x
       uses: actions/setup-go@v2