Merge branch 'release-v1.14.0' of github.com:matrix-org/synapse into dinsic-release-v1.14.x

* 'release-v1.14.0' of github.com:matrix-org/synapse: (108 commits)
  Fix typo in PR link
  Update debian changelog
  1.14.0
  Improve changelog wording
  1.14.0rc2
  Fix sample config docs error (#7581)
  Fix up comments
  Fix specifying cache factors via env vars with * in name. (#7580)
  Don't apply cache factor to event cache. (#7578)
  Ensure ReplicationStreamer is always started when replication enabled. (#7579)
  Remove the changes to the debian changelog
  Not full release yet, this is rc1
  Merge event persistence move changelog entries
  More changelog fix
  Changelog fixes
  1.14.0
  Replace device_27_unique_idx bg update with a fg one (#7562)
  Fix incorrect exception handling in KeyUploadServlet.on_POST (#7563)
  Fix recording of federation stream token (#7564)
  Simplify reap_monthly_active_users (#7558)
  ...

scripts-dev/build_debian_packages

@@ -24,8 +24,6 @@ DISTS = (
     "debian:sid",
     "ubuntu:xenial",
     "ubuntu:bionic",
-    "ubuntu:cosmic",
-    "ubuntu:disco",
     "ubuntu:eoan",
     "ubuntu:focal",
 )

scripts-dev/convert_server_keys.py

@@ -3,8 +3,6 @@ import json
 import sys
 import time
 
-import six
-
 import psycopg2
 import yaml
 from canonicaljson import encode_canonical_json
@@ -12,10 +10,7 @@ from signedjson.key import read_signing_keys
 from signedjson.sign import sign_json
 from unpaddedbase64 import encode_base64
 
-if six.PY2:
-    db_type = six.moves.builtins.buffer
-else:
-    db_type = memoryview
+db_binary_type = memoryview
 
 
 def select_v1_keys(connection):
@@ -72,7 +67,7 @@ def rows_v2(server, json):
     valid_until = json["valid_until_ts"]
     key_json = encode_canonical_json(json)
     for key_id in json["verify_keys"]:
-        yield (server, key_id, "-", valid_until, valid_until, db_type(key_json))
+        yield (server, key_id, "-", valid_until, valid_until, db_binary_type(key_json))
 
 
 def main():