Add missing makefile header link (#41773)

Without this the file won't get rebuilt if the header changes, potentially causing
ABI mismatches and crashes.

src/Makefile

@@ -261,7 +261,7 @@ $(BUILDDIR)/interpreter.o $(BUILDDIR)/interpreter.dbg.obj: $(SRCDIR)/builtin_pro
 $(BUILDDIR)/jitlayers.o $(BUILDDIR)/jitlayers.dbg.obj: $(SRCDIR)/jitlayers.h $(SRCDIR)/codegen_shared.h
 $(BUILDDIR)/jltypes.o $(BUILDDIR)/jltypes.dbg.obj: $(SRCDIR)/builtin_proto.h
 $(build_shlibdir)/libllvmcalltest.$(SHLIB_EXT): $(SRCDIR)/codegen_shared.h $(BUILDDIR)/julia_version.h
-$(BUILDDIR)/llvm-alloc-opt.o $(BUILDDIR)/llvm-alloc-opt.dbg.obj: $(SRCDIR)/codegen_shared.h
+$(BUILDDIR)/llvm-alloc-opt.o $(BUILDDIR)/llvm-alloc-opt.dbg.obj: $(SRCDIR)/codegen_shared.h $(SRCDIR)/llvm-pass-helpers.h
 $(BUILDDIR)/llvm-final-gc-lowering.o $(BUILDDIR)/llvm-final-gc-lowering.dbg.obj: $(SRCDIR)/llvm-pass-helpers.h
 $(BUILDDIR)/llvm-gc-invariant-verifier.o $(BUILDDIR)/llvm-gc-invariant-verifier.dbg.obj: $(SRCDIR)/codegen_shared.h
 $(BUILDDIR)/llvm-late-gc-lowering.o $(BUILDDIR)/llvm-late-gc-lowering.dbg.obj: $(SRCDIR)/llvm-pass-helpers.h