[bazel] Fix build for 5fe9aea (llvm#142065)

Author: googlewalt

utils/bazel/llvm-project-overlay/lldb/source/Plugins/BUILD.bazel

@@ -644,6 +644,7 @@ cc_library(
     includes = [".."],
     deps = [
         ":PluginPlatformPOSIX",
+        ":PluginProcessUtility",
         ":PluginTypeSystemClangHeaders",
         "//lldb:Breakpoint",
         "//lldb:Core",