fix(host-metrics): make host metrics constructor options optional

[legendecas]

Which problem is this PR solving?

Fixes #2274

Short description of the changes

• Fields of MetricsCollectorConfig should all be optional.
• Remove unused option fields.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 90.30%. Comparing base (dfb2dff) to head (15745f5).
Report is 174 commits behind head on main.

❗ Current head 15745f5 differs from pull request most recent head 6a07fdc

Please upload reports for the commit 6a07fdc to get more accurate results.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #2300      +/-   ##
==========================================
- Coverage   90.97%   90.30%   -0.68%     
==========================================
  Files         146      147       +1     
  Lines        7492     7263     -229     
  Branches     1502     1509       +7     
==========================================
- Hits         6816     6559     -257     
- Misses        676      704      +28     

Files	Coverage Δ
...ages/opentelemetry-host-metrics/src/BaseMetrics.ts	100.00% <100.00%> (ø)

... and 58 files with indirect coverage changes

[legendecas]

Reverted removal on

opentelemetry-js-contrib/packages/opentelemetry-host-metrics/test/metric.test.ts

Line 153 in 0ed4038

name: '', // to get default instrumentation scope name

to keep the empty name test.