tasks: migration 0.20 from tshistory is possible for one seriesname

build: we need rework/ui there

tsio/rename: introduce the `propagate` parameter

xl/http: adaptation to new module name

cli/list-series-locks: drop use of the deprecated `apimaker`

pkg: update dependencies

tasks: tshistory 0.20 migration is now available as a task

That will run while the system is online.

tests: adjust for the now needed `keepnans` keyword for updates with nans

search: add missing __sig__ methods to help the UI

webapp: add favicon

pyproject: please the ruff linter

reduce the number of deprecation warnings

build: test with the latest numpy and pandas

doc/usage: fix postgresql uri

doc/usage: fix the config file

And give some advice to check everything is ok.

test/web: adjust after changes in tsview

migration: prepare 0.9

webapp: the separate "historic" view has been retired from tsview

It is now integrated into the rest.

formula-batch: move page to tsview

reduce_frequency: on empty stamps sequence, do not stop

Depending on the policy configuration this condition
can indeed happen in the wild.