Bump java-models-library sub module pointer

[thomasspriggs]

In order to confirm correct functioning with updated models library github action.

• Each commit message has a non-empty body, explaining why the change was made.
• Methods or procedures I have added are documented, following the guidelines provided in CODING_STANDARD.md.
• The feature or user visible behaviour I have added or modified has been documented in the User Guide in doc/cprover-manual/
• Regression or unit tests are included, or existing tests cover the modified code (in this case I have detailed which ones those are in the commit message).
• My commit message includes data points confirming performance improvements (if claimed).
• My PR is restricted to a single feature or bugfix.
• White-space or formatting changes outside the feature-related changed lines are in commits of their own.

[codecov]

Codecov Report

Base: 77.99% // Head: 78.00% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (4783cb8) compared to base (9d51ea2).
Patch coverage: 95.21% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7247   +/-   ##
========================================
  Coverage    77.99%   78.00%           
========================================
  Files         1619     1621    +2     
  Lines       187194   187278   +84     
========================================
+ Hits        146007   146086   +79     
- Misses       41187    41192    +5     

Impacted Files	Coverage Δ
src/cprover/console.cpp	29.06% <0.00%> (-2.19%)	⬇️
src/cprover/console.h	66.66% <ø> (ø)
unit/util/expr_cast/expr_cast.cpp	100.00% <ø> (ø)
src/solvers/flattening/boolbv_byte_extract.cpp	69.73% <75.00%> (-0.40%)	⬇️
src/cprover/solver_progress.cpp	80.00% <80.00%> (ø)
src/util/simplify_expr.cpp	83.90% <95.45%> (+0.12%)	⬆️
...de/java_trace_validation/java_trace_validation.cpp	100.00% <100.00%> (ø)
src/analyses/goto_rw.cpp	66.59% <100.00%> (ø)
src/ansi-c/goto_check_c.cpp	91.50% <100.00%> (-0.05%)	⬇️
src/cprover/solver.cpp	83.15% <100.00%> (+0.24%)	⬆️
... and 20 more

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