chore: helm thanos support

[fcjack]

What this PR does / why we need it:

We are adding the support to thanos storage config inside our helm chart.
Together with this we are doing some refactor in our helpers to make our chart more reusable in some components and avoid code duplication.

Which issue(s) this PR fixes:
Fixes #

Special notes for your reviewer:

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]

💻 Deploy preview deleted.

[ashwanthgoli]

lgtm. left a couple of nits

[github-actions]

Helm Diff Output - Summary

Single Binary Scenario

Default Values Scenario

Ingress Values Scenario

Legacy Monitoring Scenario

Simple Scalable AWS Kube IRSA Scenario

Simple Thanos Scenario

520d519
<         prefix: null
522,531c521
<           access_key_id: thanos-minio
<           bucket_name: admin_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: {}
---
>           bucket_name: admin
564,576c554,560
<         object_store:
<           prefix: null
<           s3:
<             access_key_id: thanos-minio
<             bucket_name: chunks_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: {}
---
>         s3:
>           access_key_id: root-user
>           bucketnames: chunks
>           endpoint: loki-release-minio.default.svc:9000
>           insecure: true
>           s3forcepathstyle: true
>           secret_access_key: supersecretpassword
620,633d603
<     ruler_storage:
<       backend: s3
<       prefix: null
<       s3:
<         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: {}
1271c1241
<         checksum/config: 1c596ed8933ceee9bd7c5e30b7b4b6b7c8060ceb4c345db76938b297f96a59e4
---
>         checksum/config: 0afeeec017d60fd5bb2d0c8900214e5cdaa121f2c08993d250c03f0821c0d22e
1377c1347
<         checksum/config: 1c596ed8933ceee9bd7c5e30b7b4b6b7c8060ceb4c345db76938b297f96a59e4
---
>         checksum/config: 0afeeec017d60fd5bb2d0c8900214e5cdaa121f2c08993d250c03f0821c0d22e
1481c1451
<         checksum/config: 1c596ed8933ceee9bd7c5e30b7b4b6b7c8060ceb4c345db76938b297f96a59e4
---
>         checksum/config: 0afeeec017d60fd5bb2d0c8900214e5cdaa121f2c08993d250c03f0821c0d22e
1697c1667
<         checksum/config: 1c596ed8933ceee9bd7c5e30b7b4b6b7c8060ceb4c345db76938b297f96a59e4
---
>         checksum/config: 0afeeec017d60fd5bb2d0c8900214e5cdaa121f2c08993d250c03f0821c0d22e
2054c2024
<         checksum/config: 1c596ed8933ceee9bd7c5e30b7b4b6b7c8060ceb4c345db76938b297f96a59e4
---
>         checksum/config: 0afeeec017d60fd5bb2d0c8900214e5cdaa121f2c08993d250c03f0821c0d22e