Do not interpret go version as float

See golangci/golangci-lint#3414 (comment)

Author: Kesuaheli

.github/workflows/gotest.yml

@@ -19,7 +19,7 @@ jobs:
     - name: Set up Go
       uses: actions/setup-go@v3
       with:
-        go-version: 1.20
+        go-version: '1.20'
 
     - name: Set up dependencies
       run: go mod download