[OTAGENT-566] Full host profiler: Add k8sattributesprocessor (#41731)

### What does this PR do?

This PR adds the ability to use  k8sattributesprocessor and attributesprocessor when the agent is not available

### Motivation

Infra attributes processor doesn't work without the agent.

### Describe how you validated your changes
Add an unit tests.

### Additional Notes

Author: ogaca-dd

comp/host-profiler/collector/impl/otel_col_factories.go

@@ -14,6 +14,8 @@ import (
 	"github.com/DataDog/datadog-agent/comp/host-profiler/collector/impl/converternoagent"
 	"github.com/DataDog/datadog-agent/comp/host-profiler/collector/impl/receiver"
 	"github.com/DataDog/datadog-agent/comp/otelcol/otlp/components/processor/infraattributesprocessor"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sattributesprocessor"
 
 	"go.opentelemetry.io/collector/confmap"
 	"go.opentelemetry.io/collector/exporter/debugexporter"
@@ -67,7 +69,7 @@ func NewExtraFactoriesWithoutAgentCore() ExtraFactories {
 
 // GetProcessors returns the processors for the collector.
 func (e extraFactoriesWithoutAgentCore) GetProcessors() []processor.Factory {
-	return nil
+	return []processor.Factory{k8sattributesprocessor.NewFactory()}
 }
 
 // GetConverters returns the converters for the collector.
@@ -93,7 +95,9 @@ func createFactories(extraFactories ExtraFactories) func() (otelcol.Factories, e
 			return otelcol.Factories{}, err
 		}
 
-		processors, err := otelcol.MakeFactoryMap(extraFactories.GetProcessors()...)
+		processorFactories := []processor.Factory{attributesprocessor.NewFactory()}
+		processorFactories = append(processorFactories, extraFactories.GetProcessors()...)
+		processors, err := otelcol.MakeFactoryMap(processorFactories...)
 		if err != nil {
 			return otelcol.Factories{}, err
 		}

comp/host-profiler/collector/impl/otel_col_factories_test.go

@@ -0,0 +1,30 @@
+// Unless explicitly stated otherwise all files in this repository are licensed
+// under the Apache License Version 2.0.
+// This product includes software developed at Datadog (https://www.datadoghq.com/).
+// Copyright 2025-present Datadog, Inc.
+
+//go:build linux
+
+package collectorimpl
+
+import (
+	"testing"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sattributesprocessor"
+	"github.com/stretchr/testify/require"
+)
+
+func TestExtraFactoriesWithoutAgentCore_GetProcessors(t *testing.T) {
+	extraFactories := NewExtraFactoriesWithoutAgentCore()
+	factories, err := createFactories(extraFactories)()
+	require.NoError(t, err)
+
+	processors := factories.Processors
+	_, found := processors[k8sattributesprocessor.NewFactory().Type()]
+	require.True(t, found)
+
+	_, found = processors[attributesprocessor.NewFactory().Type()]
+	require.True(t, found)
+
+}

go.mod

@@ -741,12 +741,12 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/prometheus v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/zipkin v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/winperfcounters v0.137.0 // indirect
-	github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor v0.137.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/processor/attributesprocessor v0.137.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/cumulativetodeltaprocessor v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/deltatocumulativeprocessor v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/filterprocessor v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/groupbyattrsprocessor v0.137.0 // indirect
-	github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sattributesprocessor v0.137.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/processor/k8sattributesprocessor v0.137.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/probabilisticsamplerprocessor v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourcedetectionprocessor v0.137.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/processor/resourceprocessor v0.137.0 // indirect