Add support for BYOK clusters to opta logs

[rabbitfang]

Description

• Adds support for opta logs to BYOK clusters.
• opta secret and opta shell already seem to work just fine without any additional changes for BYOK clusters

Safety checklist

• This change is backwards compatible and safe to apply by existing users
• This change will NOT lead to data loss
• This change will NOT lead to downtime who already has an env/service setup

How has this change been tested, beside unit tests?

Manually verified that I could run opta logs, opta shell, and opta secret with a k8s-service only opta file that doesn't contain an environment.

[codecov]

Codecov Report

Merging #874 (690154d) into main (46ddfa4) will decrease coverage by 0.04%.
The diff coverage is 0.00%.

@@            Coverage Diff             @@
##             main     #874      +/-   ##
==========================================
- Coverage   73.51%   73.46%   -0.05%     
==========================================
  Files         123      123              
  Lines        8159     8190      +31     
==========================================
+ Hits         5998     6017      +19     
- Misses       2161     2173      +12     

Flag	Coverage Δ
unittests	73.46% <0.00%> (-0.05%)	⬇️

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

Impacted Files	Coverage Δ
opta/commands/logs.py	75.60% <0.00%> (-3.88%)	⬇️
modules/k8s_manifest/k8s_manifest.py	49.09% <0.00%> (-4.76%)	⬇️
opta/layer.py	85.38% <0.00%> (+1.39%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 46ddfa4...690154d. Read the comment docs.