Add warning Errno -3

warnings_config.yml

@@ -4,6 +4,7 @@ sphinx:
   max: 0
   exclude:
     - 'WARNING: Connection failed: HTTPSConnectionPool\(host=.+, port=\d+\): Max retries exceeded with url: /api/v2/[\w/?=&\\]+ \(Caused by NameResolutionError\(\"<urllib3\.connection\.HTTPSConnection object at [0-9a-z]+>: Failed to resolve .+ \(\[Errno -2\] Name or service not known\)\"\)\)'
+    - 'WARNING: Connection failed: HTTPSConnectionPool\(host=.+, port=\d+\): Max retries exceeded with url: /api/v2/[\w/?=&\\]+ \(Caused by NameResolutionError\(\"<urllib3\.connection\.HTTPSConnection object at [0-9a-z]+>: Failed to resolve .+ \(\[Errno -3\] Temporary failure in name resolution\)\"\)\)'
     - 'WARNING: CID \d+: Could not find item ID .+ in traceability collection.'
     - 'WARNING: cannot cache unpickable configuration value: .traceability_attributes_sort. \(because it contains a function, class, or module object\)'
 doxygen: