fix(examples): specify 'time_range_endpoints' to prevent toast warning

[mistercrunch]

SUMMARY

Prevent this error message/toast on examples charts:

SIP-15 #6360 introduced new internal chart params that never got fixed in our examples, and the error message above have been showing up ever since. This PR addresses the error message by adding the required chart parameters to the examples as they get loaded.

[codecov-io]

Codecov Report

Merging #11417 into master will increase coverage by 0.00%.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master   #11417   +/-   ##
=======================================
  Coverage   66.55%   66.55%           
=======================================
  Files         860      860           
  Lines       40871    40871           
  Branches     3688     3688           
=======================================
+ Hits        27201    27203    +2     
+ Misses      13571    13570    -1     
+ Partials       99       98    -1     

Flag	Coverage Δ
#cypress	56.60% <ø> (+0.05%)	⬆️
#javascript	62.92% <ø> (ø)
#python	61.92% <ø> (-0.02%)	⬇️

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

Impacted Files	Coverage Δ
superset/examples/birth_names.py	100.00% <ø> (ø)
superset/examples/deck.py	13.84% <ø> (ø)
superset/examples/world_bank.py	100.00% <ø> (ø)
superset/views/utils.py	81.77% <0.00%> (-0.43%)	⬇️
superset/views/core.py	74.30% <0.00%> (-0.17%)	⬇️
superset/connectors/sqla/models.py	89.62% <0.00%> (-0.14%)	⬇️
.../src/dashboard/components/gridComponents/Chart.jsx	84.69% <0.00%> (+1.02%)	⬆️
superset-frontend/src/SqlLab/actions/sqlLab.js	65.59% <0.00%> (+1.06%)	⬆️

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