ci: bump version to v1.18

Author: kenhys

.github/workflows/linux.yml

@@ -14,8 +14,8 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - dockerfile: v1.17/alpine
-          - dockerfile: v1.17/debian
+          - dockerfile: v1.18/alpine
+          - dockerfile: v1.18/debian
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@master

.github/workflows/windows.yml

@@ -14,9 +14,9 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - version: v1.17
+          - version: v1.18
             os-version: 2019
-          - version: v1.17
+          - version: v1.18
             os-version: 2022
     runs-on: windows-${{ matrix.os-version }}
     steps: