[chore][mdatagen] fix imports conditions and indentation (#12797)

#### Description

fix imports conditions and indentation

Signed-off-by: Matthieu MOREL <[email protected]>

Author: mmorel-35

cmd/mdatagen/internal/command_test.go

@@ -704,7 +704,6 @@ package metadata
 
 import (
 	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/metric/embedded"
 	"go.opentelemetry.io/otel/trace"
 
 	"go.opentelemetry.io/collector/component"
@@ -737,7 +736,6 @@ package metadata
 
 import (
 	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/metric/embedded"
 	"go.opentelemetry.io/otel/trace"
 
 	"go.opentelemetry.io/collector/component"

cmd/mdatagen/internal/templates/metrics.go.tmpl

@@ -12,7 +12,7 @@ import (
 	"go.opentelemetry.io/collector/component"
 	"go.opentelemetry.io/collector/pdata/pcommon"
 	"go.opentelemetry.io/collector/pdata/pmetric"
-	{{- if or isReceiver isScraper }}
+	{{- if or isReceiver isScraper isConnector }}
 	"go.opentelemetry.io/collector/{{ .Status.Class }}"
 	{{- end }}
 	{{- if .SemConvVersion }}

cmd/mdatagen/internal/templates/telemetry.go.tmpl

@@ -4,22 +4,28 @@ package {{ .Package }}
 
 import (
     {{- if .Telemetry.Metrics }}
-    {{- range $_, $metric := .Telemetry.Metrics }}
-    {{- if $metric.Data.Async }}
+        {{- range $_, $metric := .Telemetry.Metrics }}
+            {{- if $metric.Data.Async }}
     "context"
-    "sync"
-
-{{- break}}
-    {{- end }}
-    {{- end }}
+                {{- break}}
+            {{- end }}
+        {{- end }}
     "errors"
+    "sync"
     {{- end }}
 
-	"go.opentelemetry.io/otel/metric"
+    "go.opentelemetry.io/otel/metric"
+    {{- if .Telemetry.Metrics }}
+        {{- range $_, $metric := .Telemetry.Metrics }}
+            {{- if $metric.Data.Async }}
     "go.opentelemetry.io/otel/metric/embedded"
-	"go.opentelemetry.io/otel/trace"
+                {{- break}}
+            {{- end }}
+        {{- end }}
+    {{- end }}
+    "go.opentelemetry.io/otel/trace"
 
-	"go.opentelemetry.io/collector/component"
+    "go.opentelemetry.io/collector/component"
 )
 
 func Meter(settings component.TelemetrySettings) metric.Meter {

cmd/mdatagen/internal/templates/telemetrytest.go.tmpl

@@ -3,20 +3,20 @@
 package {{ .Package }}test
 
 import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-	"go.opentelemetry.io/otel/sdk/metric/metricdata"
-	"go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest"
-
-	{{- if or isConnector isExporter isExtension isProcessor isReceiver isScraper }}
-	"go.opentelemetry.io/collector/component"
-	{{- end }}
-	"go.opentelemetry.io/collector/component/componenttest"
-	{{- if or isConnector isExporter isExtension isProcessor isReceiver isScraper }}
-	"go.opentelemetry.io/collector/{{ .Status.Class }}"
-	"go.opentelemetry.io/collector/{{ .Status.Class }}/{{ .Status.Class }}test"
-	{{- end }}
+    "testing"
+
+    "github.com/stretchr/testify/require"
+    "go.opentelemetry.io/otel/sdk/metric/metricdata"
+    "go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest"
+
+    {{- if or isConnector isExporter isExtension isProcessor isReceiver isScraper }}
+    "go.opentelemetry.io/collector/component"
+    {{- end }}
+    "go.opentelemetry.io/collector/component/componenttest"
+    {{- if or isConnector isExporter isExtension isProcessor isReceiver isScraper }}
+    "go.opentelemetry.io/collector/{{ .Status.Class }}"
+    "go.opentelemetry.io/collector/{{ .Status.Class }}/{{ .Status.Class }}test"
+    {{- end }}
 )
 
 {{ if or isConnector isExporter isExtension isProcessor isReceiver isScraper }}

cmd/mdatagen/internal/templates/telemetrytest_test.go.tmpl

@@ -3,15 +3,22 @@
 package {{ .Package }}test
 
 import (
-	"context"
-	"testing"
+    "context"
+    "testing"
 
 	"github.com/stretchr/testify/require"
-	"go.opentelemetry.io/otel/metric"
-	"go.opentelemetry.io/otel/sdk/metric/metricdata"
-	"go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest"
+    {{- if .Telemetry.Metrics }}
+        {{- range $_, $metric := .Telemetry.Metrics }}
+             {{- if $metric.Data.Async }}
+    "go.opentelemetry.io/otel/metric"
+                {{- break}}
+            {{- end }}
+        {{- end }}
+    {{- end }}
+    "go.opentelemetry.io/otel/sdk/metric/metricdata"
+    "go.opentelemetry.io/otel/sdk/metric/metricdata/metricdatatest"
 
-	"go.opentelemetry.io/collector/component/componenttest"
+    "go.opentelemetry.io/collector/component/componenttest"
 )
 
 func TestSetupTelemetry(t *testing.T) {
@@ -21,12 +28,12 @@ func TestSetupTelemetry(t *testing.T) {
 	defer tb.Shutdown()
 
     {{- range $name, $metric := .Telemetry.Metrics }}
-    {{- if $metric.Data.Async }}
+        {{- if $metric.Data.Async }}
     require.NoError(t, tb.Register{{ $name.Render }}Callback(func(_ context.Context, observer metric.{{ casesTitle $metric.Data.BasicType }}Observer) error {
         observer.Observe(1)
         return nil
     }))
-    {{- end }}
+        {{- end }}
     {{- end }}
 
     {{- range $name, $metric := .Telemetry.Metrics }}