Fix build-push-action condition

[vincentmr]

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---

Context:
Two steps of the Docker build (building and pushing and latest to DH) should be skipped if the push-to-dockerhub value is false, and the condition is broken (always skip).

Description of the Change:
Fix the condition.

Benefits:

Possible Drawbacks:

Related GitHub Issues:
[sc-68127]

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 27.88%. Comparing base (a5c349c) to head (933e488).
Report is 93 commits behind head on master.

❗ There is a different number of reports uploaded between BASE (a5c349c) and HEAD (933e488). Click for more details.

HEAD has 2 uploads less than BASE

Flag	BASE (a5c349c)	HEAD (933e488)
	6	4

Additional details and impacted files

@@             Coverage Diff             @@
##           master     #790       +/-   ##
===========================================
- Coverage   94.37%   27.88%   -66.49%     
===========================================
  Files         115       17       -98     
  Lines       17638     1886    -15752     
===========================================
- Hits        16645      526    -16119     
- Misses        993     1360      +367     

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