fix(helm): Fix incorrect context references in Helm storage templates

[Jayclifford345]

What this PR does / why we need it:
Problem:
The Helm template _helpers.tpl contained incorrect context references (.ctx.ctx.Values) for several storage types that would cause template rendering failures.

Solution: Fixed context references from .ctx.ctx.Values to .ctx.Values for:
alibabacloud storage type
swift storage type
bos storage type
cos storage type

Checklist

• Reviewed the CONTRIBUTING.md guide (required)
• Documentation added
• Tests updated
• Title matches the required conventional commits format, see here
  • Note that Promtail is considered to be feature complete, and future development for logs collection will be in Grafana Alloy. As such, feat PRs are unlikely to be accepted unless a case can be made for the feature actually being a bug fix to existing behavior.
• Changes that require user attention or interaction to upgrade are documented in docs/sources/setup/upgrade/_index.md
• If the change is deprecating or removing a configuration option, update the deprecated-config.yaml and deleted-config.yaml files respectively in the tools/deprecated-config-checker directory. Example PR

[github-actions]

Helm Diff Output - Summary

Default Values Scenario-diff-output

Distributed Scenario-diff-output

Ingress Values Scenario-diff-output

Legacy Monitoring Values Scenario-diff-output

Simple Scalable AWS Kube IRSA Values Scenario-diff-output

Simple Thanos Values Scenario-diff-output

580,590c580
<           access_key_id: thanos-minio
<           bucket_name: ruler_thanos
<           endpoint: http://minio.minio.svc.cluster.local:9000
<           http:
<             tls_config:
<               insecure_skip_verify: true
<           insecure: true
<           region: us-east-1
<           secret_access_key: thanos-minio123
<           sse: {}
<         storage_prefix: null
---
>           bucketnames: ruler
1249c1239
<         checksum/config: 14faca847f0abec438f528ba5bab3e686aeb7c8327a471139b65a159d32a9209
---
>         checksum/config: ac0586877c272c058aadbc86ce9bb614e3cf2586fdc12c4456fcac8032b42e72
1355c1345
<         checksum/config: 14faca847f0abec438f528ba5bab3e686aeb7c8327a471139b65a159d32a9209
---
>         checksum/config: ac0586877c272c058aadbc86ce9bb614e3cf2586fdc12c4456fcac8032b42e72
1459c1449
<         checksum/config: 14faca847f0abec438f528ba5bab3e686aeb7c8327a471139b65a159d32a9209
---
>         checksum/config: ac0586877c272c058aadbc86ce9bb614e3cf2586fdc12c4456fcac8032b42e72
1675c1665
<         checksum/config: 14faca847f0abec438f528ba5bab3e686aeb7c8327a471139b65a159d32a9209
---
>         checksum/config: ac0586877c272c058aadbc86ce9bb614e3cf2586fdc12c4456fcac8032b42e72
2091c2081
<         checksum/config: 14faca847f0abec438f528ba5bab3e686aeb7c8327a471139b65a159d32a9209
---
>         checksum/config: ac0586877c272c058aadbc86ce9bb614e3cf2586fdc12c4456fcac8032b42e72

Single Binary Scenario-diff-output

[jkroepke]

LGTM