hacking: fix announce script version parsing (#71008)

Change:
- Fix a bug where rc/beta versions throw off the "is this an
  ansible-base release"? check.

Test Plan:
- Used it for 2.10.0rc4

Signed-off-by: Rick Elrod <rick@elrod.me>

hacking/build_library/build_ansible/announce.py

@@ -235,8 +235,11 @@ def is_ansible_base(version):
     ver_split = []
     for component in version.split('.'):
         if not component.isdigit():
-            # Take everything up until the first non-numeric component
-            break
+            if 'rc' in component:
+                ver_split.append(int(component.split('rc')[0]))
+            if 'b' in component:
+                ver_split.append(int(component.split('b')[0]))
+            continue
         ver_split.append(int(component))
     return tuple(ver_split) >= (2, 10, 0)