Extending Agent `heartbeat` infra to inlude `job_result` information

[nharper285]

Summary of the Pull Request

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PR Checklist

• [ ] Applies to work item: #xxx
• [ ] CLA signed. If not, go over here and sign the CLI.
• [ ] Tests added/passed
• [ ] Requires documentation to be updated
• [ ] I've discussed this with core contributors already. If not checked, I'm ready to accept this work might be rejected in favor of a different grand plan. Issue number where discussion took place: #xxx

Info on Pull Request

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Validation Steps Performed

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[codecov-commenter]

Codecov Report

Merging #3321 (2b1d3a5) into main (02b74c6) will decrease coverage by 0.13%. The diff coverage is 1.20%.

@@            Coverage Diff             @@
##             main    #3321      +/-   ##
==========================================
- Coverage   31.68%   31.56%   -0.13%     
==========================================
  Files         308      309       +1     
  Lines       37626    37778     +152     
==========================================
+ Hits        11921    11923       +2     
- Misses      25705    25855     +150     

Files Changed	Coverage Δ
...Service/ApiService/Functions/QueueTaskHeartbeat.cs	0.00% <0.00%> (ø)
src/ApiService/ApiService/OneFuzzTypes/Model.cs	71.91% <0.00%> (-0.77%)	:arrow_down:
src/ApiService/ApiService/Program.cs	11.76% <0.00%> (-0.08%)	:arrow_down:
...ApiService/ApiService/onefuzzlib/OnefuzzContext.cs	0.00% <0.00%> (ø)
...c/agent/onefuzz-task/src/tasks/analysis/generic.rs	0.00% <0.00%> (ø)
...rc/agent/onefuzz-task/src/tasks/fuzz/supervisor.rs	0.00% <0.00%> (ø)
src/agent/onefuzz-task/src/tasks/heartbeat.rs	0.00% <0.00%> (ø)
.../agent/onefuzz-task/src/tasks/regression/common.rs	0.00% <0.00%> (ø)
...gent/onefuzz-task/src/tasks/report/crash_report.rs	11.16% <0.00%> (-1.34%)	:arrow_down:
...nt/onefuzz-task/src/tasks/report/dotnet/generic.rs	0.00% <0.00%> (ø)
... and 5 more