chore(datastore): update PR template with checkpoints

[lawmicha]

Issue #, if available:

Description of changes:
similar reminder on dev-preview #2393

Check points: (check or cross out if not relevant)

• Added new tests to cover change, if needed
• Build succeeds with all target using Swift Package Manager
• All unit tests pass
• All integration tests pass
• Security oriented best practices and standards are followed (e.g. using input sanitization, principle of least privilege, etc)
• Documentation update for the change if required
• PR title conforms to conventional commit style
• If breaking change, documentation/changelog update with migration instructions

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.

[codecov-commenter]

Codecov Report

Merging #2394 (5f778cd) into main (6672b2a) will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             main    #2394      +/-   ##
==========================================
+ Coverage   63.96%   64.01%   +0.04%     
==========================================
  Files         720      720              
  Lines       22633    22633              
==========================================
+ Hits        14478    14489      +11     
+ Misses       8155     8144      -11     

Flag	Coverage Δ
API_plugin_unit_test	66.66% <ø> (ø)
AWSPluginsCore	73.30% <ø> (-0.08%)	⬇️
Amplify	51.32% <ø> (+0.05%)	⬆️
Analytics_plugin_unit_test	72.72% <ø> (ø)
Auth_plugin_unit_test	81.94% <ø> (ø)
DataStore_plugin_unit_test	81.63% <ø> (+0.14%)	⬆️
Geo_plugin_unit_test	57.87% <ø> (ø)
Predictions_plugin_unit_test	33.53% <ø> (ø)
Storage_plugin_unit_test	59.25% <ø> (ø)

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

Impacted Files	Coverage Δ
...Plugin/Sync/Support/MutationEvent+Extensions.swift	23.80% <0.00%> (-45.24%)	⬇️
...e/AWSPluginsCore/Auth/AWSAuthServiceBehavior.swift	75.00% <0.00%> (-12.50%)	⬇️
...oreCategoryPlugin/Sync/Support/Model+Compare.swift	82.29% <0.00%> (+2.08%)	⬆️
...s/AWSHubPlugin/Internal/HubChannelDispatcher.swift	94.11% <0.00%> (+8.82%)	⬆️
...MutationQueue/OutgoingMutationQueue+Resolver.swift	92.85% <0.00%> (+10.71%)	⬆️
...ngMutationQueue/OutgoingMutationQueue+Action.swift	66.66% <0.00%> (+66.66%)	⬆️
...ingMutationQueue/OutgoingMutationQueue+State.swift	68.75% <0.00%> (+68.75%)	⬆️

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[harsh62]

LGTM