fix: send operation selection set to graphql upstream.

[laststylebender14]

Summary:
Briefly describe the changes made in this PR.

Issue Reference(s):
Fixes #3088

Build & Testing:

• I ran cargo test successfully.
• I have run ./lint.sh --mode=fix to fix all linting issues raised by ./lint.sh --mode=check.

Checklist:

• I have added relevant unit & integration tests.
• I have updated the documentation accordingly.
• I have performed a self-review of my code.
• PR follows the naming convention of <type>(<optional scope>): <title>

[codecov]

Codecov Report

Attention: Patch coverage is 61.83206% with 100 lines in your changes missing coverage. Please review.

Project coverage is 86.55%. Comparing base (fb0974d) to head (a24351c).

Files with missing lines	Patch %	Lines
src/core/json/graphql.rs	9.27%	88 Missing ⚠️
src/core/jit/model.rs	76.47%	4 Missing ⚠️
src/core/json/borrow.rs	0.00%	3 Missing ⚠️
src/core/json/serde.rs	0.00%	3 Missing ⚠️
src/core/document.rs	98.03%	1 Missing ⚠️
src/core/graphql/request_template.rs	94.73%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #3106      +/-   ##
==========================================
- Coverage   86.87%   86.55%   -0.33%     
==========================================
  Files         276      277       +1     
  Lines       26873    27093     +220     
==========================================
+ Hits        23347    23450     +103     
- Misses       3526     3643     +117     

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[github-actions]

Bencher Report

Branch	3106/merge
Testbed	benchmarking-runner

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Benchmark	Latency	nanoseconds (ns)
from_json_bench	📈 view plot ⚠️ NO THRESHOLD	6,180,100.00
group_by	📈 view plot ⚠️ NO THRESHOLD	486.83
input/args.missing	📈 view plot ⚠️ NO THRESHOLD	22.24
input/args.nested.existing	📈 view plot ⚠️ NO THRESHOLD	42.29
input/args.nested.missing	📈 view plot ⚠️ NO THRESHOLD	36.66
input/args.root	📈 view plot ⚠️ NO THRESHOLD	38.13
input/headers.existing	📈 view plot ⚠️ NO THRESHOLD	30.64
input/headers.missing	📈 view plot ⚠️ NO THRESHOLD	29.77
input/value.missing	📈 view plot ⚠️ NO THRESHOLD	22.22
input/value.nested.existing	📈 view plot ⚠️ NO THRESHOLD	42.76
input/value.nested.missing	📈 view plot ⚠️ NO THRESHOLD	35.13
input/value.root	📈 view plot ⚠️ NO THRESHOLD	36.33
input/vars.existing	📈 view plot ⚠️ NO THRESHOLD	8.16
input/vars.missing	📈 view plot ⚠️ NO THRESHOLD	10.48
synth_nested	📈 view plot ⚠️ NO THRESHOLD	95,324.00
synth_nested_borrow	📈 view plot ⚠️ NO THRESHOLD	41,129.00
test_batched_body	📈 view plot ⚠️ NO THRESHOLD	1,877.40
test_batched_body #2	📈 view plot ⚠️ NO THRESHOLD	1,512,000.00
test_data_loader	📈 view plot ⚠️ NO THRESHOLD	395,490.00
test_handle_request	📈 view plot ⚠️ NO THRESHOLD	128,440.00
test_handle_request_jit	📈 view plot ⚠️ NO THRESHOLD	62,087.00
test_http_execute_method	📈 view plot ⚠️ NO THRESHOLD	15,841.00
with_mustache_expressions	📈 view plot ⚠️ NO THRESHOLD	1,134.10
with_mustache_literal	📈 view plot ⚠️ NO THRESHOLD	702.27

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