refactor: move httpx into the internal package (#646)

This concludes the TODO list at https://github.com/ooni/probe/issues/1951

internal/engine/probeservices/checkreportid.go

@@ -4,7 +4,7 @@ import (
 	"context"
 	"net/url"
 
-	"github.com/ooni/probe-cli/v3/internal/engine/httpx"
+	"github.com/ooni/probe-cli/v3/internal/httpx"
 )
 
 type checkReportIDResponse struct {

internal/engine/probeservices/checkreportid_test.go

@@ -8,8 +8,8 @@ import (
 
 	"github.com/apex/log"
 	"github.com/ooni/probe-cli/v3/internal/atomicx"
-	"github.com/ooni/probe-cli/v3/internal/engine/httpx"
 	"github.com/ooni/probe-cli/v3/internal/engine/probeservices"
+	"github.com/ooni/probe-cli/v3/internal/httpx"
 	"github.com/ooni/probe-cli/v3/internal/kvstore"
 )
 

internal/engine/probeservices/measurementmeta.go

@@ -5,7 +5,7 @@ import (
 	"net/url"
 	"time"
 
-	"github.com/ooni/probe-cli/v3/internal/engine/httpx"
+	"github.com/ooni/probe-cli/v3/internal/httpx"
 )
 
 // MeasurementMetaConfig contains configuration for GetMeasurementMeta.

internal/engine/probeservices/measurementmeta_test.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/apex/log"
 	"github.com/ooni/probe-cli/v3/internal/atomicx"
-	"github.com/ooni/probe-cli/v3/internal/engine/httpx"
 	"github.com/ooni/probe-cli/v3/internal/engine/probeservices"
+	"github.com/ooni/probe-cli/v3/internal/httpx"
 	"github.com/ooni/probe-cli/v3/internal/kvstore"
 )
 

internal/engine/probeservices/probeservices.go

@@ -29,7 +29,7 @@ import (
 	"net/url"
 
 	"github.com/ooni/probe-cli/v3/internal/atomicx"
-	"github.com/ooni/probe-cli/v3/internal/engine/httpx"
+	"github.com/ooni/probe-cli/v3/internal/httpx"
 	"github.com/ooni/probe-cli/v3/internal/model"
 )