gh-39557: Fixed issue where insert_row in dense integer matrices would not accept python integers.
    
Fixes #11328. Fixes issue where when you put python integers into the
insert_row function of dense matrices it caused a crash. Fixed the issue
by adding a try catch block and converting the entries to sage integers
directly if the try block fails. Does not add any more insert_row
functions anywhere else or change the behavior of insert_row as
suggested in the comments of #11328.

### 📝 Checklist

<!-- Put an `x` in all the boxes that apply. -->

- [X] The title is concise and informative.
- [X] The description explains in detail what this PR is about.
- [X] I have linked a relevant issue or discussion.
- [X] I have created tests covering the changes.
- [X] I have updated the documentation and checked the documentation
preview.

### ⌛ Dependencies
    
URL: #39557
Reported by: Noel-Roemmele
Reviewer(s): Noel-Roemmele, Travis Scrimshaw

Author: Release Manager

src/sage/matrix/matrix_integer_dense.pyx

@@ -5423,6 +5423,16 @@ cdef class Matrix_integer_dense(Matrix_dense):
             [  3   4   5]
             [  6   7   8]
             [  1   5 -10]
+
+        TESTS:
+
+        Ensure that :issue:`11328` is fixed::
+
+            sage: m = matrix([[int(1),int(1)],[int(1),int(1)]])
+            sage: m.insert_row(1,[int(2),int(3)])
+            [1 1]
+            [2 3]
+            [1 1]
         """
         cdef Matrix_integer_dense res = self._new(self._nrows + 1, self._ncols)
         cdef Py_ssize_t j
@@ -5438,7 +5448,8 @@ cdef class Matrix_integer_dense(Matrix_dense):
             for i from 0 <= i < index:
                 fmpz_init_set(fmpz_mat_entry(res._matrix,i,j), fmpz_mat_entry(self._matrix,i,j))
 
-            z = row[j]
+            z = ZZ(row[j])
+
             fmpz_set_mpz(zflint,z.value)
             fmpz_init_set(fmpz_mat_entry(res._matrix,index,j), zflint)