[DO NOT MERGE] Experimental build using clang 14

[esteffin]

Checking if clang-14 builds correctly on Ubuntu 20.04.

[codecov]

Codecov Report

Base: 78.28% // Head: 78.28% // Increases project coverage by +0.00% 🎉

Coverage data is based on head (d2377b2) compared to base (d7dd40a).
Patch coverage: 92.56% of modified lines in pull request are covered.

Additional details and impacted files

@@           Coverage Diff            @@
##           develop    #7317   +/-   ##
========================================
  Coverage    78.28%   78.28%           
========================================
  Files         1642     1642           
  Lines       189995   190022   +27     
========================================
+ Hits        148737   148768   +31     
+ Misses       41258    41254    -4     

Impacted Files	Coverage Δ
src/solvers/flattening/boolbv_byte_extract.cpp	69.73% <ø> (ø)
src/solvers/flattening/boolbv_byte_update.cpp	100.00% <ø> (ø)
src/solvers/flattening/boolbv_equality.cpp	63.63% <ø> (ø)
src/solvers/flattening/boolbv_index.cpp	72.91% <ø> (ø)
...ncremental/smt2_incremental_decision_procedure.cpp	96.81% <ø> (ø)
src/util/byte_operators.h	92.72% <ø> (ø)
src/cprover/propagate.cpp	65.85% <16.66%> (-8.44%)	⬇️
src/util/lower_byte_operators.cpp	92.70% <95.50%> (ø)
src/solvers/smt2/smt2_conv.cpp	66.79% <100.00%> (+0.40%)	⬆️
src/util/byte_operators.cpp	93.10% <100.00%> (+3.10%)	⬆️
... and 2 more

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[tautschnig]

Closing as #7496 adds a new job instead of replacing an existing one.