chore: indent the code with eslint

[blumamir]

Which problem is this PR solving?

The linting did not inforced any indentation on the code.

Short description of the changes

Added the following rule to eslint.config.js:

  rules: {
    "indent": ["error", 2],

All other changes are indentation fixes auto generated by eslint when invoking yarn lint:fix on root.

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to not work as expected)
• This change requires a documentation update

How Has This Been Tested?

Only style changes, no functional change in code.

Checklist:

• Followed the style guidelines of this project
• Unit tests have been added
• Documentation has been updated

[codecov]

Codecov Report

Merging #2923 (fba60d2) into main (6710cdd) will not change coverage.
The diff coverage is 100.00%.

❗ Current head fba60d2 differs from pull request most recent head 2c6d78f. Consider uploading reports for the commit 2c6d78f to get more accurate results

@@           Coverage Diff           @@
##             main    #2923   +/-   ##
=======================================
  Coverage   92.31%   92.31%           
=======================================
  Files         171      171           
  Lines        5346     5346           
  Branches     1155     1155           
=======================================
  Hits         4935     4935           
  Misses        411      411           

Impacted Files	Coverage Δ
...ges/opentelemetry-instrumentation-http/src/http.ts	94.46% <ø> (ø)
...entelemetry-instrumentation/src/instrumentation.ts	77.77% <ø> (ø)
...atform/node/instrumentationNodeModuleDefinition.ts	14.28% <ø> (ø)
...src/platform/node/instrumentationNodeModuleFile.ts	100.00% <ø> (ø)
...sdk-metrics-base/src/exemplar/ExemplarReservoir.ts	95.65% <ø> (ø)
...etry-sdk-metrics-base/src/export/MetricExporter.ts	27.27% <ø> (ø)
...sync-hooks/src/AbstractAsyncHooksContextManager.ts	97.01% <ø> (ø)
packages/opentelemetry-core/src/baggage/utils.ts	75.75% <ø> (ø)
...exporter-trace-otlp-proto/src/OTLPTraceExporter.ts	100.00% <100.00%> (ø)
...er-metrics-otlp-http/src/OTLPMetricExporterBase.ts	57.14% <100.00%> (ø)
... and 5 more

[legendecas]

Overall LGTM. Just left a few questions.