[receiver/awscloudwatch]: Use next token in Log Group discovery

[schmikei]

Description:
Fixing a bug with the Log Group Discovery where nextToken was not properly getting set on the request.

Link to tracking Issue: Resolves #32053

Testing:

Documentation:

[AllanOricil]

@schmikei it does not work

I used the same config.yaml with the binary I created from your branch and both had different results.

Below is the output when using 0.97.0

2024-04-11T04:59:12.112Z	info	prometheusreceiver@v0.97.0/metrics_receiver.go:299	Starting scrape manager	{"kind": "receiver", "name": "prometheus", "data_type": "metrics"}
2024-04-11T04:59:21.971Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:287	attempting to discover log groups.	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "limit": 100}
2024-04-11T04:59:22.003Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:323	discovered log group	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "log group": "{\n  Arn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function:*\",\n  CreationTime: 1701809123724,\n  LogGroupArn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function\",\n  LogGroupClass: \"STANDARD\",\n  LogGroupName: \"/aws/lambda/get-instances-api-function\",\n  MetricFilterCount: 0,\n  RetentionInDays: 7,\n  StoredBytes: 137470\n}"}
2024-04-11T04:59:31.970Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:287	attempting to discover log groups.	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "limit": 100}
2024-04-11T04:59:31.994Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:323	discovered log group	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "log group": "{\n  Arn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function:*\",\n  CreationTime: 1701809123724,\n  LogGroupArn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function\",\n  LogGroupClass: \"STANDARD\",\n  LogGroupName: \"/aws/lambda/get-instances-api-function\",\n  MetricFilterCount: 0,\n  RetentionInDays: 7,\n  StoredBytes: 137470\n}"}
2024-04-11T04:59:41.971Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:287	attempting to discover log groups.	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "limit": 100}
2024-04-11T04:59:41.997Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:323	discovered log group	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "log group": "{\n  Arn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function:*\",\n  CreationTime: 1701809123724,\n  LogGroupArn: \"arn:aws:logs:us-east-2:845044614340:log-group:/aws/lambda/get-instances-api-function\",\n  LogGroupClass: \"STANDARD\",\n  LogGroupName: \"/aws/lambda/get-instances-api-function\",\n  MetricFilterCount: 0,\n  RetentionInDays: 7,\n  StoredBytes: 137470\n}"}

Below you can see the result I got from the new binary

2024-04-11T04:58:36.200Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:287	attempting to discover log groups.	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "limit": 100}
2024-04-11T04:58:36.200Z	error	awscloudwatchreceiver@v0.97.0/logs.go:165	unable to perform discovery of log groups	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "error": "unable to list log groups: InvalidParameter: 1 validation error(s) found.\n- minimum field size of 1, DescribeLogGroupsInput.NextToken.\n"}
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awscloudwatchreceiver.(*logsReceiver).startPolling
	github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awscloudwatchreceiver@v0.97.0/logs.go:165
2024-04-11T04:58:46.201Z	debug	awscloudwatchreceiver@v0.97.0/logs.go:287	attempting to discover log groups.	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "limit": 100}
2024-04-11T04:58:46.201Z	error	awscloudwatchreceiver@v0.97.0/logs.go:165	unable to perform discovery of log groups	{"kind": "receiver", "name": "awscloudwatch", "data_type": "logs", "error": "unable to list log groups: InvalidParameter: 1 validation error(s) found.\n- minimum field size of 1, DescribeLogGroupsInput.NextToken.\n"}
github.com/open-telemetry/opentelemetry-collector-contrib/receiver/awscloudwatchreceiver.(*logsReceiver).startPolling

[AllanOricil]

How can I test changes without having to build the binary? it takes too much time

[github-actions]

This PR was marked stale due to lack of activity. It will be closed in 14 days.

[AllanOricil]

😭