Handle `DefinitionPatternError` gracefully in Kontrol

Running poetry -C kevm-pyk run kontrol prove ... with lemmas that cause DefinitionPatternError in the booster backend throws a PID still exists but it's a zombie error that does not describe the root cause of the issue:

Running functions: ['...']

[Info#proxy] Loading definition from ../test-forge-args/out/kompiled/definition.kore, main module "FOUNDRY-MAIN"
kore-rpc-booster: DefinitionPatternError (Located (Location {file = FileSource "/Users/personal/k/test-forge-args/out/kompiled/requires/lemmas.k", position = Position {line = 132, column = 10}})) (PredicateExpected (KJDV {sort = SortApp {name = Id {getId = "SortBool"}, args = []}, value = "true"}))
CallStack (from HasCallStack):
  error, called at tools/booster/Server.hs:115:52 in main:Main
Traceback (most recent call last):
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/psutil/_psosx.py", line 346, in wrapper
    return fun(self, *args, **kwargs)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/psutil/_psosx.py", line 503, in connections
    rawlist = cext.proc_connections(self.pid, families, types)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
ProcessLookupError: [Errno 3] No such process (originated from proc_pidinfo(PROC_PIDLISTFDS) 1/2)

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "<string>", line 1, in <module>
  File "/Users/personal/k/kontrol/src/kontrol/__main__.py", line 87, in main
    execute(**vars(args))
  File "/Users/personal/k/kontrol/src/kontrol/__main__.py", line 254, in exec_prove
    results = foundry_prove(
              ^^^^^^^^^^^^^^
  File "/Users/personal/k/kontrol/src/kontrol/prove.py", line 102, in foundry_prove
    results = run_prover(setup_method_tests)
              ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/personal/k/kontrol/src/kontrol/prove.py", line 87, in run_prover
    return _run_cfg_group(
           ^^^^^^^^^^^^^^^
  File "/Users/personal/k/kontrol/src/kontrol/prove.py", line 229, in _run_cfg_group
    apr_proofs.append(init_and_run_proof(test))
                      ^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/personal/k/kontrol/src/kontrol/prove.py", line 187, in init_and_run_proof
    with legacy_explore(
  File "/opt/homebrew/Cellar/python@3.11/3.11.6/Frameworks/Python.framework/Versions/3.11/lib/python3.11/contextlib.py", line 137, in __enter__
    return next(self.gen)
           ^^^^^^^^^^^^^^
  File "/Users/personal/k/evm-semantics/kevm-pyk/src/kevm_pyk/utils.py", line 318, in legacy_explore
    with kore_server(
         ^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/pyk/kore/rpc.py", line 1111, in kore_server
    return BoosterServer(
           ^^^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/pyk/kore/rpc.py", line 1070, in __init__
    super().__init__(
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/pyk/kore/rpc.py", line 961, in __init__
    self._host, self._port = self._get_host_and_port(self._pid)
                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/pyk/kore/rpc.py", line 988, in _get_host_and_port
    while not proc.connections():
              ^^^^^^^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/psutil/__init__.py", line 1171, in connections
    return self._proc.connections(kind)
           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
  File "/Users/personal/Library/Caches/pypoetry/virtualenvs/kontrol-XPmevNL1-py3.11/lib/python3.11/site-packages/psutil/_psosx.py", line 349, in wrapper
    raise ZombieProcess(self.pid, self._name, self._ppid)
psutil.ZombieProcess: PID still exists but it's a zombie (pid=98113)

Reproduce the poetry -C kevm-pyk run kontrol prove ... case, then start from src/kontrol/__main__.py, src/kontrol/prove.py, and the legacy_explore call in kevm_pyk/utils.py. Trace the booster startup path shown in the traceback; done means a DefinitionPatternError reports its root cause instead of surfacing PID still exists but it's a zombie.