[Deprecation] Alertmanager Component

[grandwizard28]

Background

With the successful merge of PR #7222, signoz's alertmanager component has become redundant. This removal aligns with our strategic goal of moving towards a single binary distribution and reducing the number of components needed to run SigNoz. This removal also aligns with our goal to create a multi-tenant SigNoz.

Tasks

• Add dot suppot by changing name scheme validation to utf-8
• Add support for msteamsv2 receiver
• Mark https://github.com/SigNoz/alertmanager as deprecated
• Remove alertmanager from https://github.com/SigNoz/charts
  - fix(signoz): fix alertmanager enabled clause charts#629 (support for enabling/disabling alertmanager)
• Update relevant documentation

Related Issues

• Contributes to [Feature Request] single binary creation - frontend build with the query-service #657

Related PRs

• feat: signoz package and deprecation of frontend, alertmanager #7301
• docs: add deprecation notice alertmanager#40

[srikanthccv]

few additional items in the checklist before deprecating

• dot suppot by chancing name scheme validation to utf-8
• adptive card in msteams payload
• allow to disable require tls with env