internal/acctest: ignore missing endpoints in pre-check

Adds the logic used in internal/sweep/awsv2 to the internal/acctest pre-check skipping function. Successfully tested with DevOpsGuru in GovCloud:

```console
% make testacc PKG=devopsguru TESTS=TestAccDevOpsGuru_serial
==> Checking that code complies with gofmt requirements...                                                                                                                           TF_ACC=1 go1.21.8 test ./internal/service/devopsguru/... -v -count 1 -parallel 20 -run='TestAccDevOpsGuru_serial'  -timeout 360m

--- PASS: TestAccDevOpsGuru_serial (0.12s)
    --- PASS: TestAccDevOpsGuru_serial/ResourceCollection (0.11s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollection/basic (0.11s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollection/cloudformation (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollection/disappears (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollection/tags (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollection/tagsAllResources (0.00s)
    --- PASS: TestAccDevOpsGuru_serial/ResourceCollectionDataSource (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ResourceCollectionDataSource/basic (0.00s)
    --- PASS: TestAccDevOpsGuru_serial/ServiceIntegration (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ServiceIntegration/basic (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/ServiceIntegration/kms (0.00s)
    --- PASS: TestAccDevOpsGuru_serial/EventSourcesConfig (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/EventSourcesConfig/basic (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/EventSourcesConfig/disappears (0.00s)
    --- PASS: TestAccDevOpsGuru_serial/NotificationChannel (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/NotificationChannel/basic (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/NotificationChannel/disappears (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/NotificationChannel/filters (0.00s)
    --- PASS: TestAccDevOpsGuru_serial/NotificationChannelDataSource (0.00s)
        --- SKIP: TestAccDevOpsGuru_serial/NotificationChannelDataSource/basic (0.00s)
PASS
ok      github.com/hashicorp/terraform-provider-aws/internal/service/devopsguru 5.604s
```

internal/acctest/acctest.go

@@ -9,6 +9,7 @@ import (
 	"errors"
 	"fmt"
 	"log"
+	"net"
 	"os"
 	"reflect"
 	"regexp"
@@ -1733,6 +1734,10 @@ func PreCheckSkipError(err error) bool {
 	if tfawserr.ErrCodeEquals(err, "ForbiddenException") {
 		return true
 	}
+	// Ignore missing API endpoints
+	if errs.IsA[*net.DNSError](err) {
+		return true
+	}
 	return false
 }
 

internal/service/devopsguru/devopsguru_test.go

@@ -5,9 +5,6 @@ package devopsguru_test
 
 import (
 	"context"
-	"errors"
-	"net"
-	"strings"
 	"testing"
 
 	"github.com/aws/aws-sdk-go-v2/service/devopsguru"
@@ -60,13 +57,6 @@ func testAccPreCheck(ctx context.Context, t *testing.T) {
 	if acctest.PreCheckSkipError(err) {
 		t.Skipf("skipping acceptance testing: %s", err)
 	}
-	// In GovCloud partitions, API calls trigger an operation error
-	var netOpErr *net.OpError
-	if errors.As(err, &netOpErr) {
-		if strings.Contains(netOpErr.Error(), "no such host") {
-			t.Skipf("skipping acceptance testing: %s", err)
-		}
-	}
 	if err != nil {
 		t.Fatalf("unexpected PreCheck error: %s", err)
 	}