feat: bump Observability Operator version to v4.0.0

[vmanley]

Description

Bump the version of Observability Operator to v4.0.0

Verification Steps

Checklist (Definition of Done)

• All acceptance criteria specified in JIRA have been completed
• Unit and integration tests added that prove the fix is effective or the feature works (tested against emulated and non-emulated OCM environment)
• Documentation added for the feature
• CI and all relevant tests are passing
• Code Review completed
• Verified independently by reviewer
• All PR comments are resolved either by addressing them or creating follow up tasks
• Required metrics/dashboards/alerts have been added (or PR created).
• Required Standard Operating Procedure (SOP) is added.
• JIRA has been created for changes required on the client side

[pb82]

@vmanley I don't think this needs to be a draft. Let's get v3.0.16 on stage before the next Prod release.

[machi1990]

The change looks good to me.

Can we follow suit with this one by bumping https://github.com/bf2fc6cc711aee1a0c2a/kas-installer/blob/main/kas-installer-defaults.env#L127 to the latest tag that contains this change as well as updating https://github.com/bf2fc6cc711aee1a0c2a/kas-installer/blob/main/kas-installer-defaults.env#L145 to match the latest KFM commit sha? Thanks

[machi1990]

@vmanley I don't think this needs to be a draft.

+1 I've promoted the PR to get CI run.

Let me know if this is waiting on anything else or it can be merged if we've a green CI run? @vmanley

[codecov]

Codecov Report

Merging #1423 (d01f186) into main (58d4336) will not change coverage.
The diff coverage is n/a.

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1423   +/-   ##
=======================================
  Coverage   83.31%   83.31%           
=======================================
  Files         143      143           
  Lines       12794    12794           
=======================================
  Hits        10659    10659           
  Misses       1753     1753           
  Partials      382      382           

Flag	Coverage Δ
unittests	83.31% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
.../kafka/internal/config/dataplane_cluster_config.go	68.58% <ø> (ø)

[vmanley]

@pb82 @machi1990 Bumped to v4.0.0. Verified on cluster. Could I get one of you to merge?

[machi1990]

lgtm

I'd also like @pb82 to give his blessings on this.
Please lets also followup in updating kas-installer