feat!: update to versioned exported trace format

[drmorr0]

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Description

This fixes a bug where if you track multiple resource types (Deployments and StatefulSets) for example, some of the objects get deleted on tracer startup, due to a mishandling of the Restart event.

This necessitated some changes to the trace file to track GVKs in addition to namespaced names of objects in its "index". Since I was in the code, I also took the opportunity here to update the format of the trace file to make it more future-proof. Trace files now include a version parameter, and are a dictionary of objects instead of just a list. This way I can add new fields or elements to the trace, and if you're running an old version of simkube they will be silently ignored. However, this change in format is a BREAKING CHANGE, hence this will bump SimKube to 2.0.

Testing done

• make test; added a new test into the trace_store_test code that would catch the initial bug that triggered this change
• manual testing; confirmed that simulations still run, export works, and xray still works.

[codecov]

Codecov Report

Attention: Patch coverage is 91.07981% with 19 lines in your changes missing coverage. Please review.

Project coverage is 71.15%. Comparing base (d8880cb) to head (c74868b).
Report is 3 commits behind head on master.

Files with missing lines	Patch %	Lines
sk-store/src/event_list.rs	75.00%	10 Missing ⚠️
sk-store/src/watchers/dyn_obj_watcher.rs	50.00%	7 Missing ⚠️
sk-store/src/pod_owners_map.rs	96.87%	1 Missing ⚠️
sk-store/src/store.rs	98.61%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##           master     #157      +/-   ##
==========================================
+ Coverage   70.04%   71.15%   +1.10%     
==========================================
  Files          49       51       +2     
  Lines        2691     2784      +93     
==========================================
+ Hits         1885     1981      +96     
+ Misses        806      803       -3     

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