[receiver/awsfirehosereceiver] make otlp_v1 a valid record type (open-telemetry#35750)

<!--Ex. Fixing a bug - Describe the bug and how this fixes the issue.
Ex. Adding a feature - Explain what this achieves.-->
#### Description

This PR is to add `otlp_v1` into the list of valid `record_type` input.
Otherwise when `record_type` sets to `otlp_v1`, we get error:
```
2024-10-23T16:53:09.823Z	info	[email protected]/service.go:135	Setting up own telemetry...
2024-10-23T16:53:09.824Z	info	telemetry/metrics.go:70	Serving metrics	{"address": "localhost:8888", "metrics level": "Normal"}
Error: failed to build pipelines: failed to create "awsfirehose" receiver for data type "metrics": unrecognized record type
```
<!-- Issue number (e.g. #1234) or full URL to issue, if applicable. -->

---------

Co-authored-by: Matthew Wear <[email protected]>

Author: kaiyan-sheng

.chloggen/add_otlp.yaml

@@ -0,0 +1,25 @@
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: bug_fix
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: awsfirehosereceiver
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: make otlp_v1 a valid record type
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [35750]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

receiver/awsfirehosereceiver/factory.go

@@ -18,6 +18,7 @@ import (
 	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver/internal/unmarshaler"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver/internal/unmarshaler/cwlog"
 	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver/internal/unmarshaler/cwmetricstream"
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver/internal/unmarshaler/otlpmetricstream"
 )
 
 const (
@@ -28,8 +29,9 @@ const (
 var (
 	errUnrecognizedRecordType = errors.New("unrecognized record type")
 	availableRecordTypes      = map[string]bool{
-		cwmetricstream.TypeStr: true,
-		cwlog.TypeStr:          true,
+		cwmetricstream.TypeStr:   true,
+		cwlog.TypeStr:            true,
+		otlpmetricstream.TypeStr: true,
 	}
 )
 

receiver/awsfirehosereceiver/factory_test.go

@@ -11,6 +11,8 @@ import (
 	"go.opentelemetry.io/collector/component/componenttest"
 	"go.opentelemetry.io/collector/consumer/consumertest"
 	"go.opentelemetry.io/collector/receiver/receivertest"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awsfirehosereceiver/internal/unmarshaler/otlpmetricstream"
 )
 
 func TestValidConfig(t *testing.T) {
@@ -43,5 +45,6 @@ func TestCreateLogsReceiver(t *testing.T) {
 func TestValidateRecordType(t *testing.T) {
 	require.NoError(t, validateRecordType(defaultMetricsRecordType))
 	require.NoError(t, validateRecordType(defaultLogsRecordType))
+	require.NoError(t, validateRecordType(otlpmetricstream.TypeStr))
 	require.Error(t, validateRecordType("nop"))
 }