examples opentelemetry-api version fix

[CptSchnitz]

Which problem is this PR solving?

• Ensure all examples are working #2346

Short description of the changes

• added opentelemetry-api to examples that were missing it.
• upgraded opentelemetry-api version to 1.0.1 on all of the examples
• fixed commands in collector-example-node readme

[codecov]

Codecov Report

Merging #2358 (21763ba) into main (cb06b78) will decrease coverage by 0.01%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2358      +/-   ##
==========================================
- Coverage   92.79%   92.77%   -0.02%     
==========================================
  Files         145      145              
  Lines        5221     5221              
  Branches     1070     1070              
==========================================
- Hits         4845     4844       -1     
- Misses        376      377       +1     

Impacted Files	Coverage Δ
...emetry-core/src/platform/node/RandomIdGenerator.ts	87.50% <0.00%> (-6.25%)	⬇️