Update type annotations of PEP 695 nodes

These attributes cannot be none in real-world situations,
see python/cpython#106145.

Author: jacobtylerwalls

astroid/nodes/node_classes.py

@@ -3381,8 +3381,8 @@ def __init__(
         col_offset: int,
         parent: NodeNG,
         *,
-        end_lineno: int | None,
-        end_col_offset: int | None,
+        end_lineno: int,
+        end_col_offset: int,
     ) -> None:
         super().__init__(
             lineno=lineno,
@@ -4068,8 +4068,8 @@ def __init__(
         col_offset: int,
         parent: NodeNG,
         *,
-        end_lineno: int | None,
-        end_col_offset: int | None,
+        end_lineno: int,
+        end_col_offset: int,
     ) -> None:
         super().__init__(
             lineno=lineno,
@@ -4128,8 +4128,8 @@ def __init__(
         col_offset: int,
         parent: NodeNG,
         *,
-        end_lineno: int | None,
-        end_col_offset: int | None,
+        end_lineno: int,
+        end_col_offset: int,
     ) -> None:
         super().__init__(
             lineno=lineno,
@@ -4168,8 +4168,8 @@ def __init__(
         col_offset: int,
         parent: NodeNG,
         *,
-        end_lineno: int | None,
-        end_col_offset: int | None,
+        end_lineno: int,
+        end_col_offset: int,
     ) -> None:
         super().__init__(
             lineno=lineno,