update pressure via eos when transverse_use_eos=1

[zhichen3]

PR summary

this is to address issue #3003

PR motivation

PR checklist

• test suite needs to be run on this PR
• this PR will change answers in the test suite to more than roundoff level
• all newly-added functions have docstrings as per the coding conventions
• the CHANGES file has been updated, if appropriate
• if appropriate, this change is described in the docs

[zingale]

all tests pass: http://groot.astro.sunysb.edu/Castro/test-suite/gfortran/2024-12-12-001/index.html

[zingale]

don't we also need to fix actual_trans_final?

[zhichen3]

okie, just added it.