Update setup-go to use go.mod (#176)

.github/workflows/release.yml

@@ -9,14 +9,6 @@ permissions:
   contents: write
 
 jobs:
-  go-version:
-    runs-on: ubuntu-latest
-    outputs:
-      version: ${{ steps.go-version.outputs.version }}
-    steps:
-      - uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
-      - id: go-version
-        run: echo "::set-output name=version::$(cat ./.go-version)"
   release-notes:
     runs-on: ubuntu-latest
     steps:
@@ -32,7 +24,7 @@ jobs:
           retention-days: 1
   terraform-provider-release:
     name: 'Terraform Provider Release'
-    needs: [go-version, release-notes]
+    needs: [release-notes]
     uses: hashicorp/ghaction-terraform-provider-release/.github/workflows/hashicorp.yml@106e6d08159ccec423310cc2c706bae59f46c09c # v2.2.0
     secrets:
       hc-releases-github-token: '${{ secrets.HASHI_RELEASES_GITHUB_TOKEN }}'
@@ -46,6 +38,6 @@ jobs:
       signore-client-secret: '${{ secrets.SIGNORE_CLIENT_SECRET }}'
     with:
       release-notes: true
-      setup-go-version: '${{ needs.go-version.outputs.version }}'
+      setup-go-version-file: 'go.mod'
       # Product Version (e.g. v1.2.3 or github.ref_name)
       product-version: '${{ github.ref_name }}'

.github/workflows/test.yml

@@ -19,15 +19,15 @@ jobs:
     timeout-minutes: 5
     steps:
 
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+
     - name: Set up Go
       uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
       with:
-        go-version: '1.18'
+        go-version-file: 'go.mod'
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
-
     - name: Go fmt
       run: |
         make fmt
@@ -58,15 +58,15 @@ jobs:
           - '0.15.1'
     steps:
 
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
+
     - name: Set up Go
       uses: actions/setup-go@6edd4406fa81c3da01a34fa6f6343087c207a568 # v3.5.0
       with:
-        go-version: '1.18'
+        go-version-file: 'go.mod'
       id: go
 
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@ac593985615ec2ede58e132d2e21d2b1cbd6127c # v3.3.0
-
     - name: TF acceptance tests
       timeout-minutes: 10
       env: