Update PR template to add integration tests in checklist

[hawflau]

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 #2306 (08acfd4) into develop (e7a1496) will increase coverage by 0.88%.
The diff coverage is 98.18%.

@@             Coverage Diff             @@
##           develop    #2306      +/-   ##
===========================================
+ Coverage    93.58%   94.46%   +0.88%     
===========================================
  Files           90       97       +7     
  Lines         6124     7052     +928     
  Branches      1260     1431     +171     
===========================================
+ Hits          5731     6662     +931     
+ Misses         183      177       -6     
- Partials       210      213       +3     

Impacted Files	Coverage Δ
samtranslator/model/api/api_generator.py	94.36% <92.75%> (+<0.01%)	⬆️
samtranslator/__init__.py	100.00% <100.00%> (ø)
samtranslator/feature_toggle/dialup.py	100.00% <100.00%> (ø)
samtranslator/feature_toggle/feature_toggle.py	100.00% <100.00%> (+12.16%)	⬆️
samtranslator/intrinsics/actions.py	98.78% <100.00%> (+0.06%)	⬆️
samtranslator/intrinsics/resource_refs.py	95.83% <100.00%> (-0.17%)	⬇️
samtranslator/metrics/method_decorator.py	100.00% <100.00%> (ø)
samtranslator/metrics/metrics.py	100.00% <100.00%> (ø)
samtranslator/model/__init__.py	97.63% <100.00%> (-0.02%)	⬇️
samtranslator/region_configuration.py	77.77% <0.00%> (-22.23%)	⬇️
... and 40 more

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