Fix build with pari 2.17

NEXT_PRIME_VIADIFF is removed in 2.17, port pari_prime_range to pari_PRIMES instead

src/sage/libs/pari/convert_sage.pyx

@@ -573,17 +573,16 @@ cpdef list pari_prime_range(long c_start, long c_stop, bint py_ints=False):
         sage: pari_prime_range(2, 19)
         [2, 3, 5, 7, 11, 13, 17]
     """
-    cdef long p = 0
-    cdef byteptr pari_prime_ptr = diffptr
+    cdef ulong i = 1
     res = []
-    while p < c_start:
-        NEXT_PRIME_VIADIFF(p, pari_prime_ptr)
-    while p < c_stop:
+    while pari_PRIMES[i] < c_start:
+        i+=1
+    while pari_PRIMES[i] < c_stop:
         if py_ints:
-            res.append(p)
+            res.append(pari_PRIMES[i])
         else:
             z = <Integer>PY_NEW(Integer)
-            mpz_set_ui(z.value, p)
+            mpz_set_ui(z.value, pari_PRIMES[i])
             res.append(z)
-        NEXT_PRIME_VIADIFF(p, pari_prime_ptr)
+        i+=1
     return res