Update python from 3.9 to 311 in JenkinsfileRT_dev

[ddavis-stsci]

Resolves RCAL-nnnn

Closes #

This PR updates python 3.9 to 3.11 in JenkinsfileRT_dev

Checklist

• [N/A ] added entry in CHANGES.rst under the corresponding subsection
• [N/A] updated relevant tests
• [N/A] updated relevant documentation
• [x] updated relevant milestone(s)
• [x] added relevant label(s)
• [x] ran regression tests, post a link to the Jenkins job below. How to run regression tests on a PR Fixes the photutils build issue but reveals other issues that will need tickets for fixes. https://plwishmaster.stsci.edu:8081/job/RT/job/Roman-devdeps/537/

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 78.93%. Comparing base (1aec135) to head (84c162c). Report is 187 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #1251 +/- ## ======================================= Coverage 78.93% 78.93% ======================================= Files 117 117 Lines 8086 8086 ======================================= Hits 6383 6383 Misses 1703 1703 ``` | [Flag](https://app.codecov.io/gh/spacetelescope/romancal/pull/1251/flags?src=pr&el=flags&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spacetelescope) | Coverage Δ | | *Carryforward flag | |---|---|---|---| | [nightly](https://app.codecov.io/gh/spacetelescope/romancal/pull/1251/flags?src=pr&el=flag&utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spacetelescope) | `62.78% <ø> (ø)` | | Carriedforward from [1aec135](https://app.codecov.io/gh/spacetelescope/romancal/commit/1aec135149bc96e7b8f7ef208dc3daa1f9139a9b?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spacetelescope) | *This pull request uses carry forward flags. [Click here](https://docs.codecov.io/docs/carryforward-flags?utm_medium=referral&utm_source=github&utm_content=comment&utm_campaign=pr+comments&utm_term=spacetelescope) to find out more.

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