Update CI Ubuntu version

Signed-off-by: lance6716 <lance6716@gmail.com>

Author: lance6716

.github/workflows/ci.yml

@@ -6,7 +6,7 @@ jobs:
  strategy:
  matrix:
  go: [ 1.19, 1.18, 1.17, 1.16 ]
- os: [ ubuntu-18.04, ubuntu-20.04 ]
+ os: [ ubuntu-22.04, ubuntu-20.04 ]
  name: Tests Go ${{ matrix.go }} # This name is used in main branch protection rules
  runs-on: ${{ matrix.os }}