Stop building with go 1.17, just to see if 1.18 works

Author: dkegel-fastly

.github/workflows/build-macos.yml

@@ -14,8 +14,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - go-version: '1.17'
-            go-stable: true
           - go-version: '1.18'
             go-stable: false
     steps:

.github/workflows/linux.yml

@@ -26,7 +26,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.17'
+          go-version: '1.18'
       - name: Cache Go
         uses: actions/cache@v2
         with:
@@ -107,7 +107,7 @@ jobs:
       - name: Install Go
         uses: actions/setup-go@v2
         with:
-          go-version: '1.17'
+          go-version: '1.18'
       - name: Install wasmtime
         run: |
           curl https://wasmtime.dev/install.sh -sSf | bash
@@ -142,8 +142,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - go-version: '1.17'
-            go-stable: true
           - go-version: '1.18'
             go-stable: false
     steps:

.github/workflows/windows.yml

@@ -14,8 +14,6 @@ jobs:
     strategy:
       matrix:
         include:
-          - go-version: '1.17'
-            go-stable: true
           - go-version: '1.18'
             go-stable: false
     steps: