Make cleaning up pushers depend on the device_id instead of the token_id (#15280)

This makes it so that we rely on the `device_id` to delete pushers on logout,
instead of relying on the `access_token_id`. This ensures we're not removing
pushers on token refresh, and prepares for a world without access token IDs
(also known as the OIDC).

This actually runs the `set_device_id_for_pushers` background update, which
was forgotten in #13831.

Note that for backwards compatibility it still deletes pushers based on the
`access_token` until the background update finishes.

1 files changed, 1 insertions, 0 deletions

diff --git a/changelog.d/15280.misc b/changelog.d/15280.misc
new file mode 100644
index 0000000000..41d56b0cf0
--- /dev/null
+++ b/changelog.d/15280.misc
@@ -0,0 +1 @@
+Make the pushers rely on the `device_id` instead of the `access_token_id` for various operations.