Fix race condition in historical e2e tests

[woop]

Signed-off-by: Willem Pienaar git@willem.co

What this PR does / why we need it:

Fixes a race condition in historical retrieval (conflict in dataset name)

Which issue(s) this PR fixes:

Tries to fix https://github.com/feast-dev/feast/runs/2748222515

Does this PR introduce a user-facing change?:

NONE

[codecov-commenter]

Codecov Report

Merging #1620 (23f7422) into master (024737c) will decrease coverage by 5.79%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1620      +/-   ##
==========================================
- Coverage   83.64%   77.84%   -5.80%     
==========================================
  Files          67       66       -1     
  Lines        5814     5688     -126     
==========================================
- Hits         4863     4428     -435     
- Misses        951     1260     +309     

Flag	Coverage Δ
integrationtests	?
unittests	77.84% <ø> (ø)

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
sdk/python/tests/test_historical_retrieval.py	61.49% <ø> (-37.36%)	⬇️
sdk/python/tests/test_cli_gcp.py	40.74% <0.00%> (-59.26%)	⬇️
sdk/python/feast/infra/offline_stores/bigquery.py	32.41% <0.00%> (-58.63%)	⬇️
sdk/python/tests/utils/data_source_utils.py	51.85% <0.00%> (-48.15%)	⬇️
sdk/python/tests/test_feature_store.py	62.50% <0.00%> (-37.50%)	⬇️
sdk/python/tests/test_inference.py	73.91% <0.00%> (-26.09%)	⬇️
...hon/tests/test_offline_online_store_consistency.py	74.72% <0.00%> (-25.28%)	⬇️
sdk/python/feast/registry.py	59.55% <0.00%> (-19.56%)	⬇️
sdk/python/feast/data_source.py	69.13% <0.00%> (-9.65%)	⬇️
... and 6 more

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[achals]

/lgtm

[feast-ci-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: achals, woop

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[achals]

/kind bug