[ci] Tolerate duplicates when registering version (#7281)

Issue: #

### Brief Summary

misc/save_new_version.py

@@ -28,11 +28,15 @@
                              json=payload,
                              auth=(username, password),
                              timeout=5)
+    r = response.json()
+    print(r)
     response.raise_for_status()
 except requests.exceptions.ConnectionError as err:
     print('Updating latest version failed: No internet,', err)
     exit(1)
 except requests.exceptions.HTTPError as err:
+    if 'duplicate' in r['message']:
+        exit(0)
     print('Updating latest version failed: Server error,', err)
     exit(1)
 except requests.exceptions.Timeout as err:
@@ -43,5 +47,4 @@
     print('Updating latest version failed:', err)
     exit(1)
 
-response = response.json()
-print(response['message'])
+exit(0)