update swig and fix deprecation

https://github.com/swig/swig/blob/5a46275a33398d6f05d196cf6e8334a570d359fd/CHANGES#L135-L136

Author: karosc

swmm-toolkit/pyproject.toml

@@ -1,5 +1,5 @@
 [build-system]
-requires = ["swig", "scikit-build-core>=0.4.3"]
+requires = ["swig>=4.4.0", "scikit-build-core>=0.4.3"]
 build-backend = "scikit_build_core.build"
 
 [project]

swmm-toolkit/src/swmm/toolkit/output.i

@@ -124,19 +124,19 @@ and return a (possibly) different pointer */
 /* INSERTS CUSTOM EXCEPTION HANDLING IN WRAPPER */
 %exception SMO_init
 {
-    $function
+    $action
 }
 
 %exception SMO_close
 {
-    $function
+    $action
 }
 
 %exception
 {
     char *err_msg;
     SMO_clearError(arg1);
-    $function
+    $action
     if (SMO_checkError(arg1, &err_msg))
     {
         PyErr_SetString(PyExc_Exception, err_msg);

swmm-toolkit/src/swmm/toolkit/solver.i

@@ -190,23 +190,23 @@
 /* INSERTS CUSTOM EXCEPTION HANDLING IN WRAPPER */
 %exception swmm_getSemVersion
 {
-    $function
+    $action
 }
 
 %exception swmm_getBuildId
 {
-    $function
+    $action
 }
 
 %exception swmm_getVersion
 {
-    $function
+    $action
 }
 
 /* INSERTS CUSTOM EXCEPTION HANDLING IN WRAPPER */
 %exception
 {
-    $function
+    $action
     if (result > 0) {
         char* errorMsg = NULL;
         int errorCode = 0;