Fix linting issues (#9)

* Update linters

* Replace deprecated ioutil

.github/workflows/build.yml

@@ -11,31 +11,35 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Check code formatting
         run: if [ "$(gofmt -s -l . | wc -l)" -gt 0 ]; then exit 1; fi
       - name: Lint
-        uses: golangci/golangci-lint-action@v2
+        uses: golangci/golangci-lint-action@v4
         with:
-          version: v1.29
+          version: v1.54
 
   test:
     strategy:
       matrix:
         go-version:
-          - 1.14.x
-          - 1.15.x
+          - 1.16.x
+          - 1.17.x
+          - 1.18.x
+          - 1.19.x
+          - 1.20.x
+          - 1.21.x
         os:
           - ubuntu-latest
           - macos-latest
           - windows-latest
     runs-on: ${{ matrix.os }}
     steps:
       - name: Install Go
-        uses: actions/setup-go@v2
+        uses: actions/setup-go@v4
         with:
           go-version: ${{ matrix.go-version }}
       - name: Checkout code
-        uses: actions/checkout@v2
+        uses: actions/checkout@v4
       - name: Test
         run: go test ./...

backend.go

@@ -5,7 +5,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 )
 
@@ -56,7 +56,7 @@ func (b *APIKeyBackend) Request(ctx context.Context, method, path string, payloa
 		return fmt.Errorf("unable to perform HTTP request: %w", err)
 	}
 	defer resp.Body.Close()
-	body, err = ioutil.ReadAll(resp.Body)
+	body, err = io.ReadAll(resp.Body)
 	if err != nil {
 		return fmt.Errorf("unable to read from HTTP response body: %w", err)
 	}

backend_test.go

@@ -3,7 +3,7 @@ package hasty
 import (
 	"context"
 	"fmt"
-	"io/ioutil"
+	"io"
 	"net/http"
 	"net/http/httptest"
 	"strings"
@@ -24,7 +24,7 @@ type testReq struct {
 func TestAPIKeyBackend(t *testing.T) {
 	reqs := make(chan testReq, 1)
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		body, _ := ioutil.ReadAll(r.Body)
+		body, _ := io.ReadAll(r.Body)
 		reqs <- testReq{
 			method: r.Method,
 			path:   r.URL.Path,

go.mod

@@ -1,3 +1,3 @@
 module github.com/cloudfactory/hasty-go
 
-go 1.14
+go 1.21