feat(connectors): add BSON payload support to connectors runtime

[Standing-Man]

Which issue does this PR close?

Closes #1847.

Rationale

What changed?

Local Execution

• Passed / not passed
• Pre-commit hooks ran / not ran

AI Usage

[github-actions]

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[codecov]

Codecov Report

❌ Patch coverage is 36.72840% with 205 lines in your changes missing coverage. Please review.
✅ Project coverage is 60.85%. Comparing base (2337883) to head (a051713).
⚠️ Report is 4 commits behind head on master.

Files with missing lines	Patch %	Lines
core/connectors/sdk/src/encoders/avro.rs	42.80%	151 Missing and 8 partials ⚠️
core/connectors/sdk/src/encoders/proto.rs	0.00%	16 Missing ⚠️
core/connectors/sdk/src/lib.rs	0.00%	10 Missing ⚠️
...ore/connectors/sdk/src/transforms/proto_convert.rs	0.00%	6 Missing ⚠️
core/connectors/sdk/src/decoders/bson.rs	0.00%	5 Missing ⚠️
core/connectors/sdk/src/encoders/bson.rs	0.00%	5 Missing ⚠️
core/connectors/sdk/src/encoders/flatbuffer.rs	0.00%	3 Missing ⚠️
core/connectors/sinks/http_sink/src/lib.rs	0.00%	1 Missing ⚠️

❌ Your patch check has failed because the patch coverage (36.72%) is below the target coverage (50.00%). You can increase the patch coverage or adjust the target coverage.

Additional details and impacted files

@@              Coverage Diff              @@
##             master    #3299       +/-   ##
=============================================
- Coverage     74.18%   60.85%   -13.34%     
  Complexity      943      943               
=============================================
  Files          1200     1206        +6     
  Lines        109645    98397    -11248     
  Branches      86534    74986    -11548     
=============================================
- Hits          81345    59877    -21468     
- Misses        25553    35762    +10209     
- Partials       2747     2758       +11     

Components	Coverage Δ
Rust Core	57.85% <36.72%> (-17.59%)	⬇️
Java SDK	58.44% <ø> (ø)
C# SDK	70.22% <ø> (+0.78%)	⬆️
Python SDK	81.43% <ø> (ø)
Node SDK	91.44% <ø> (ø)
Go SDK	39.91% <ø> (ø)

Files with missing lines	Coverage Δ
core/connectors/sinks/http_sink/src/lib.rs	85.63% <0.00%> (-0.16%)	⬇️
core/connectors/sdk/src/encoders/flatbuffer.rs	79.67% <0.00%> (-0.99%)	⬇️
core/connectors/sdk/src/decoders/bson.rs	0.00% <0.00%> (ø)
core/connectors/sdk/src/encoders/bson.rs	0.00% <0.00%> (ø)
...ore/connectors/sdk/src/transforms/proto_convert.rs	71.76% <0.00%> (-0.58%)	⬇️
core/connectors/sdk/src/lib.rs	50.50% <0.00%> (-5.68%)	⬇️
core/connectors/sdk/src/encoders/proto.rs	69.03% <0.00%> (-1.52%)	⬇️
core/connectors/sdk/src/encoders/avro.rs	60.55% <42.80%> (-12.07%)	⬇️

... and 289 files with indirect coverage changes

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