Update README for B10.2 install in Ops

[hbushouse]

This PR updates the DMS Build info table in the jwst README, to coincide with the installation of B10.2.x today in Ops.

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[bot]]

Codecov Report

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

Project coverage is 58.52%. Comparing base (b7e0b10) to head (eba9de1). Report is 334 commits behind head on master.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #8556 +/- ## ========================================== + Coverage 58.02% 58.52% +0.50% ========================================== Files 388 388 Lines 38977 38957 -20 ========================================== + Hits 22617 22801 +184 + Misses 16360 16156 -204 ```

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