update dep for stcal to released version

[braingram]

stcal 1.8.0 was released. We can now go back to using the released version (instead of installing from main). This PR updates the required version to >=1.8.0, <1.9.0. This range will allow installing the "dev" version which will appear as stcal-1.8.1.dev... when a new commit is added to stcal.

Regression tests: https://plwishmaster.stsci.edu:8081/job/RT/job/JWST-Developers-Pull-Requests/1646/

Checklist for PR authors (skip items if you don't have permissions or they are not applicable)

• added entry in CHANGES.rst within the relevant release section
• updated or added relevant tests
• updated relevant documentation
• added relevant milestone
• added relevant label(s)
• ran regression tests, post a link to the Jenkins job below.
  How to run regression tests on a PR
• All comments are resolved
• Make sure the JIRA ticket is resolved properly

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 60.38%. Comparing base (aeb7469) to head (e4ee465).

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8706      +/-   ##
==========================================
+ Coverage   60.36%   60.38%   +0.01%     
==========================================
  Files         372      372              
  Lines       38338    38337       -1     
==========================================
+ Hits        23142    23148       +6     
+ Misses      15196    15189       -7     

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[braingram]

The regression tests show 9 failures. All related to miri and likely explained by the CRDS update which mentions:

The pipeline developers plan to remove the parameters nhigh and nlow from the outlier detection code, but they first need to be removed from the parameter reference files. This delivery of MIRI outlier detection parameter reference files removes the parameters nhigh and nlow from the reference files. The values of scale are also being updated to 1.0 0.8 from the previous values of 0.5 0.4, as this gave better results when tested on MIRI calibration data. This change will affect MIRI imager, coronagraphic and LRS slit data.

[tapastro]

LGTM! It looks like some of the failures were also due to updates in context 1259 - new photom files for MRS, which is ahead of the current operational context. I learned (or re-learned...) that our tests will use the latest context, regardless of which is set to operational.