Rename job_dispatch -> fm_dispatch

[jonathan-eq]

Approach
Short description of the approach

(Screenshot of new behavior in GUI if applicable)

• PR title captures the intent of the changes, and is fitting for release notes.
• Added appropriate release note label
• Commit history is consistent and clean, in line with the contribution guidelines.
• Make sure unit tests pass locally after every commit (git rebase -i main --exec 'pytest tests/ert/unit_tests -n logical -m "not integration_test"')

When applicable

• When there are user facing changes: Updated documentation
• New behavior or changes to existing untested code: Ensured that unit tests are added (See Ground Rules).
• Large PR: Prepare changes in small commits for more convenient review
• Bug fix: Add regression test for the bug
• Bug fix: Create Backport PR to latest release

[codecov-commenter]

Codecov Report

Attention: Patch coverage is 50.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 91.88%. Comparing base (05b33a5) to head (93fb9b2).
Report is 9 commits behind head on main.

Files with missing lines	Patch %	Lines
src/_ert/forward_model_runner/cli.py	0.00%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #9534      +/-   ##
==========================================
+ Coverage   91.83%   91.88%   +0.05%     
==========================================
  Files         433      433              
  Lines       26748    26768      +20     
==========================================
+ Hits        24563    24595      +32     
+ Misses       2185     2173      -12     

Flag	Coverage Δ
cli-tests	39.78% <50.00%> (+0.36%)	⬆️
everest-models-test	34.67% <50.00%> (-0.03%)	⬇️
gui-tests	72.15% <50.00%> (-0.01%)	⬇️
integration-test	37.21% <50.00%> (+0.26%)	⬆️
performance-tests	51.98% <50.00%> (-0.01%)	⬇️
test	40.48% <50.00%> (-0.05%)	⬇️
unit-tests	74.15% <50.00%> (+0.01%)	⬆️

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[berland]

Check also this:

[../ert/docs] $ rg job_disp
ert/about/release_notes.rst
1076:  - Setup log file for job_dispatch logger (`#3999 <https://github.com/equinor/ert/pull/3999>`_)
1661:  - job_dispatch: Makedir in, out, err locations (`#2998 <https://github.com/equinor/ert/pull/2998>`_)
2528:  - Have job_dispatch propagate events to prepare for a new ensemble evaluator
2856:Add komodo_job_dispatch from equlibrium
3179: As part of this development cycle the job_dispatch script has been

ert/developer_documentation/roadmap.rst
68:should probably be propagated by the :code:`job_dispatch` to the rest of the system

ert/developer_documentation/forward_model.rst
36:this entails that the script :code:`job_dispatch.py` is executed with the runpath of

ert/reference/configuration/site_wide.rst
29:   JOB_SCRIPT ../../bin/job_dispatch.py