Made github actions use go 1.18 (#12454)

* Made github actions use go 1.18

* Fetch go version from go.mod

* Switched to v3 of setup-go

* Checkout repo before trying to get go.mod from it

.github/workflows/go.yml

@@ -13,13 +13,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
 
+    - name: Check out code into the Go module directory
+      uses: actions/checkout@v3
+
     - name: Set up Go 1.x
-      uses: actions/setup-go@37335c7bb261b353407cff977110895fa0b4f7d8
+      uses: actions/setup-go@v3
       with:
-        go-version: ^1.16
-
-    - name: Check out code into the Go module directory
-      uses: actions/checkout@5a4ac9002d0be2fb38bd78e4b4dbde5606d7042f
+        go-version-file: "go.mod"
 
     - name: Get dependencies
       run: |