Update release notes with new SSL options

Signed-off-by: Leandro Lucarella <[email protected]>

Author: llucax

RELEASE_NOTES.md

@@ -12,11 +12,15 @@
 
 - The `parse_grpc_uri` function (and `BaseApiClient` constructor) now enables SSL by default (`ssl=false` should be passed to disable it).
 
-- The `parse_grpc_uri` function now accepts an optional `default_ssl` parameter to set the default value for the `ssl` parameter when not present in the URI.
+- The `parse_grpc_uri` and `BaseApiClient` function now accepts a set of defaults to use when the URI does not specify a value for a given option.
 
 ## New Features
 
-- The connection URI can now have a new `ssl_root_certificates_path` option to specify the path to the root certificates file to use when SSL is enabled.
+- The connection URI can now have a few new SSL options:
+
+  * `ssl_root_certificates_path` to specify the path to the root certificates file.
+  * `ssl_private_key_path` to specify the path to the private key file.
+  * `ssl_certificate_chain_path` to specify the path to the certificate chain file.
 
 ## Bug Fixes
 

src/frequenz/client/base/channel.py

@@ -223,9 +223,6 @@ def _get_contents(
 
     Returns:
         The contents of the source file or the default value.
-
-    Raises:
-        ValueError: If the file cannot be read.
     """
     file_path: pathlib.Path
     match source: